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I. Identify the one underlined wordr phrase that must be changed to make the sentence correct
1. If someone came=>come into the store, slime and say, " May I help you? "
2. If you try these cosmes, you look=>will look five years younger.
3. If you do=>did not understand what were written in the book, you could ask
4. I will come to meet Mr. Pike and tell him about your problems if you (đề thiếu)
5. Sam will not graduate unless he doesn't =>x pass all the tests
6. If there isn't>weren't enough food, we couldn't continue our journey
7. Unless=>If you pour oil on water, it will float
8. You have=>will have to take a taxi home if you want to leave now
9. If anyone will phone=>phones, tell them I'll be back at 11:00
10. We can hire a minibus if there will be=>are enough people
1. If someone came into the store, slime and say, " May I help you? "
\(\Rightarrow\) If someone come into the store, slime and say, " May I help you? "
2. If you try these cosmes, you look five years younger.
\(\Rightarrow\) If you try these cosmes, you will look five years younger.
3. If you do not understand what were written in the book, you could ask
\(\Rightarrow\) If you do not understand what were written in the book, you can ask
4. I will come to meet Mr. Pike and tell him about your problems if you
\(\Rightarrow\) I would come to meet Mr. Pike and tell him about your problems if you
5. Sam will not graduate unless he doesn't pass all the tests
\(\Rightarrow\) Sam will not graduate unless he passed all the tests
6. If there isn't enough food, we couldn't continue our journey
\(\Rightarrow\)If there isn't enough food, we can't continue our journey
7. Unless you pour oil on water, it will float
\(\Rightarrow\)If you pour oil on water, it will float
8. You have to take a taxi home if you want to leave now
\(\Rightarrow\) You would have to take a taxi home if you want to leave now
9. If anyone will phone, tell them I'll be back at 11:00
\(\Rightarrow\) If anyone phones, tell them I'll be back at 11:00
10. We can hire a minibus if there will be enough people
\(\Rightarrow\) We can hire a minibus if there are enough people
1 Give correct tences of the verbs:
1 if pollution increases, more and more trees (die).....will die.......................
2wwe will go for a picnic if the weather (be)......is...........fine tomorrow.
3 Unlesss it (rain)......rains.............they will go shopping.
4 He will be late if he (not/hurry).............don't hurry...............
5 If we (cycle)....cycle......more, there will be less air polllution.
6 We (do).........will do .........this for you if you want.
7 if he (miss)........misses........the bus, he (take) .......will take.............taxi.
8 Unless she (eat).....doesn't eat......fruit,she (get).will get ...a cold.
9 if your father (not/ stop).......doesn't stop.......smoking, he (have)........will have...........poblems later.
10 She (go)...........will go.......to the party with you if you (invite)......invite.....her.
11 You ( be).......will be...........on time if you (run).....run......
12 They (not/see).........won't see...........that flim unless they (have)..........have....time.
13 if you (rent)..........rent.......a DvD, I (come)......will come.........over to your house.
14 if you (give)..give...me some money, i (buy)......will buy.....some chocolate for you.
15 (he/have).....Will he have......an accident if he (drive)....drives.........so fast?
16 (you/be)....Will you be........at home soon if you (leave).......leave........now?
1 Give correct tences of the verbs:
1 if pollution increases, more and more trees (die)will die
2 we will go for a picnic if the weather (be)is fine tomorrow.
3 Unlesss it (rain) rains they will go shopping.
4 He will be late if he (not/hurry) don't hurry
5 If we (cycle) cycle more, there will be less air polllution.
6 We (do) will do this for you if you want.
7 if he (miss) misses the bus, he (take) will take taxi.
8 Unless she (eat) doesn't eat fruit,she (get)will get a cold.
9 if your father (not/ stop) doesn't stop smoking, he (have) will have poblems later.
10 She (go) will go to the party with you if you (invite) invite her.
11 You ( be)will be on time if you (run) run
12 They (not/see)won't see that firm unless they (have) have time.
13 if you (rent) rent a DvD, I (come)will come over to your house.
14 if you (give) give me some money, i (buy) will buy some chocolate for you.
15 (he/have)Will he have an accident if he (drive) drives so fast?
16 (you/be)Will you be at home soon if you (leave) leave now?
V. Identify the word or phrase that must be changed to make the sentence correct.
1. If someone came into the store, smile and say, “May I help you?”.
came -> comes
2. If you try these cosmetics, you look five years younger.
look -> will look
3. If you do not understand what were written in the book, you could ask Mr. Pike.
do -> did
4. I will come to meet Mr. Pike and tell him about your problems if you didn’t solve them yourself.
didn't -> don't
5. Sam will not graduate unless he doesn’t pass all the tests.
doesn’t pass -> passes
6. If there isn’t enough food, we couldn’t continue our journey.
couldn’t ->can't
7. Unless you pour oil on water, it will float.
will -> won't
8. You have to take a taxi home if you want to leave now.
have => will have
9. If anyone will phone, tell them I’ll be back at 11:00.
will phone -> phones
10. We can hire a minibus if there will be enough people.
will be -> are
1. If he didn't smoke so much, he could get rid of his cough.
2. If she didn't shy, she would enjoy parties.
3. If I had the right change, we could get tickets from the machine.
4. If they spoke English, her English would improve.
5. If he worked overtime, he could earn as much as I do.
6. If my number was in the directory, people would ring me up.
7. If he wasn't very thin, he wouldn't feel very cold.
8. If I weren't fat, I could get through the bathroom window.
9. If I asked him for help, he would help me.
10. If I could drive, we could take the car.
Chọn câu trả lời đúng cho mỗi câu sau.
1. My dog ___ bark unless it is hungry.
A. don’tB. won’t
2. Unless you ___ to go to bed early, we should go out.
A. wantsB. want
3. ___ you don’t slow down, we are going to crash!
A. IfB. Unless
4. You cannot go into bars ___ you are over 18.
A. IfB. unless
5. In my country, ____ you cannot speak English, it’s hard to get a good job.
A. ifB. unless
6. She’ll fail the exam if she ___ study.
A. ifB. doesn’t
7. We’ll be late ____ we leave soon.
A. ifB. unless
8. ___ I am not feeling better tomorrow I will go to the doctor’s.
A. UnlessB. If
9. ____ you do not make the payment in time, your car will be confiscated.
A. IfB. Unless
10. You will lose your job ___ you change your attitude and become friendlier.
A. unlessB. If
11. She won’t know the truth ___ you tell it to her.
A. unlessB. if
12. ____ you arrive early, you’ll be able to meet the customers before the meeting.
A. UnlessB. If
13. ____ she eats healthy food, she won’t lose some weight.
A. UnlessB. If
14. They won’t arrive on time ___ they finish the work early.
A. unlessB. if
15. Will she able to eat some cake ___ I put eggs in it?
A. unlessB. if
Khoanh vào phương án thích hợp để đặt trong các câu điều kiện loại 1 dưới đây.
1. If she (reads/ read) in bad light, she will run her eyes.
2. If I find your book, I (will phone/ could phone) you at once.
3. I will get angry if you (make/ will make) more mistakes.
4. If you don’t believe what I said. (ask/ will ask) your father.
5. If I study hard, I (pass/ will pass) this year’s exam.
6. If the weather is fine, we (go/ will go) on a picnic.
7. If I (go/ will go) to Paris, I will visit the Eiffel Tower.
8. If they don’t invite me, I (don’t go/ won’t go).
9. If he (got/ gets) my email, he will send the information we need.
10. If she travels to London, she (will visit/ visits) the museums.
11. If I (will get/ get) the money, I will buy a mobile phone.
12. If you make trouble, I (will send/ will sent) you to the principal.
13. If I (had/ have) enough time this evening, I will watch a movie.
14. If he has money, he (will lends/ will lend) me what I need.
15. If you (eat/ will eat) greasy food, you will become fat.
16. If your sister goes to Paris, she (has/ will have) a good time.
17. If he (will do/ does) that, he will be sorry.
18. If I leave now, I (will arrive/ arrive) in New York by 8:00 pm.
19. You (won’t do well/ don’t do well) on your test if you don’t study.
20. They won’t know the truth if you (won’t tell/ don’t tell) them.
21. If I bake a cake, (will you/ do you) have some?
22. If he (will call/ calls) you, will you answer the phone?
23. If you don’t go to the party, I (am/ will be) very upset.
24. If you get a haircut, you (will look/ look) much better.
#Yumi
1. If I DON'T HAVE (not /have) lunch, I WILL BE (be) hungry.
2. If he ISN'T (not /be) at work, he WILL BE (be) at home then.
3. If I DON'T WORK (not/work), I WILL GO (go) to a disco.
4. If Oanh ISN'T (not/ be) thirsty, she WON'T DRINK (not/drink) any fizzy mineral
water.
5. If she DOESN'T GET (not/ get) tired, I WILL INVITE ( invite) her to our party.
6. If they DON'T COMMUNICATE (not/ communicate), they WON'T HAVE (not /have) any jobs.
7. If my daughter DOESN'T DO (not/ do) the washing up, I WILL HAVE TO (have to) do it instead
of her.
8. I WON'T TELL (not /tell) anybody about it if you DON'T WANT (not/ want).
9. I am sure she WILL DO (to do) it if you ASK (to ask) her.
10. They WILL COME (come) if she INVITES (invite) them.
11. He WILL WRITE ( write) a letter to her if she WRITES (write) first.
12. I WILL GO (go) there if you GO (go) with me.
13. Max WILL PASS ( pass) the exam if he STUDIES (study) hard.
14. If he ISN'T (not / be) at home, I WILL VISIT ( visit) his sister then.
15. If she DOESN'T WALK (not /walk) every day, she WON'T BE (not / be) healthy enough.
16. If Max DOESN'T ACCEPT (not / accept) Alex’s invitation this time, Alex WON'T INVITE (not/ invite)
him again.
17. If my kid DOESN'T READ (not / read) this book, he WON'T GET (not /get) a good mark in
Literature.
18. If Tom DOESN'T WATER (not/ water) the violets, they WILL DIE (die).
19. If Lena ISN'T (not/ be) happy, she WON'T STAY (not /stay) there for a long
time.
20. If my son DOESN'T MAKE (not /make) his bed, he WON'T PLAY (not / play) football with his
friends.
21. If my teacher DOESN'T LIKE (not/like) my English, I WILL TRY ( try) to study it harder than
before.
22. My son WILL SPEAK ( speak) English fluently if he GOES ( go) to study English abroad.
23. If she FALLS ( fall) in love with Henry, they WILL GET (get) married, I think.
24. If you HELP (help) me, I WILL HELP (help) you.
25. If they CATCH (catch) the bus, they WILL ARRIVE (arrive) on time.
26. If my parents SUPPORT (support) me, I WILL BE (be) a better person.
27. If it RAINS (rain), I WILL GET (get) wet.
28. Sally and Elizabeth WILL GO (go) out tonight if their parents ALLOW (allow) it.
29. They WILL VISIT (visit) Eiffel Tower if they GO (go) to France.
30. If I PASS (pass) the year, my parents WILL GIVE (give) me a gift.
31. If I DON'T PASS (not/pass) the year, my parents WILL BE (be) very disappointed.
32. If the cable TV DOESN'T WORK (not/work), we WILL RENT (rent) a DVD.
33. If the baby DOESN'T EAT (not/eat), we WILL SEE (see) the doctor.
34. If the T-shirt SUITS (suit) me, I WILL BUY (buy) it.
35. If you CONTINUE (continue) on a diet, you WILL GET (get) sick.
36. If you ARE (be) a good listener, you WILL HAVE (have) many friends.
37. If you ARE NOT (not/be) careful, you WILL SPOIL (spoil) the machine.
38. If she IS NOT (not / be) careful, she WON'T HAVE (not/have) enough money left.
39. If you GET (get) enough sleep, you WILL FEEL (feel) healthier.
40. My parents WILL GIVE (give) me a hug, if I ARRIVE (arrive) home early.
41. If you ARE NOT (not/be) careful, you WILL FALL (fall).
42. If she EATS (eat) that mayonnaise, she WILL BE (be) sick.
43. If they DON'T BEHAVE (not/behave), their parents WILL PUNISH (punish) them.
44. She WILL GO (go) on a trip if she HAS GOT (have got) holidays in August.
45. I WILL GET (get) dehydrated if you DON'T DRINK (not/drink) more water.
46. If it IS (be) too much heat, I WILL TURN OFF (turn off) the air conditioning.
47. You WILL UNDERSTAND (understand) conditional sentences if you PRACTISE (practise) carefully.
48. We (do) WILL DO this for you if you want.
49. If we (need) NEED some help, we will ask.
50. If Peter stays with his grandparents, Susan (not be) WON'T BE happy.
51. If we win the money, we (buy) WILL BUY a new house.
52. She (not write) WON'T WRITE to you if she leaves.
53. We (go) WILL GO on holiday if there is time.
BT1: Match the phrases to from a sentence in the first conditional, and write the answer in each blank A B
1. If we leave now a. it'll bite you
2. If I give you some money b. I'm sure she'll say "yes"
3. If you wear that shirt c. we'll go to the beach
4. If you invite her to the cinema d. will you buy some chocolate for me?
5. If he drives that car fast e. you'll look really good
6. If I phone you at nine f. we'll be home by ten
7. If it's hot tomorrow g. he'll have an accident
8. If you touch that dog h. will you be at home?
1F
2D
3E
4B
5G
6H
7C
8A
1. Điền động từ khuyết thiếu ''mustn't'' hoặc ''don't have'' vào chỗ trống thích hợp.
1. There is a ''No turn right'' sign. You ...mustn't... turn right.
2. The sign says ''No smoking''. You ...mustn't... smoke here.
3. You ...don't have to... have an appointment for this doctor. You cam go and see him when you want.
4. You ..don't have to.... tell me. I already know.
5. The big boss will be at the meeting. You ...mustn't... be late.
6. You can help me if you want to but you ....don't have to..
7. You ...mustn't... park your car there. That's the Director's place.
8. This area is off limits to everybody. You ...mustn't... come here unless you are unvited.
9. You ...don't have... to wear a tie in this company but they prefer it if you do.
10. You ....mustn't.. criticize David. He's doing the best he can.
11. You ..mustn't.... drive there. You can take the train.
12. You ....mustn't.. play tennsis to enjoy watching tennis matches.
13. You ..don't have to.... buy me presents though I always appreciate it when you do.
14. It's really important to remember. You ...mustn't...forget.
15. You ...mustn't... tell anybody. It is a big secret.
16. We are already late. We ...mustn't... waste any more time.
17. This is a sterile area. It must be kept clean. You ...mustn't... bring any food or drink in here.
18. You ...don't have to... come at 8:00. Come at whatever time suits you.
19. You ....mustn't.. smoke in this area. It is forbidden.
20. I ...don't have... go back again. The treatment is finished.
21. eans are not allowed in this company. You ...mustn't... wear jeans.
22. You ...mustn't... be mad to work here but it helps !
23. You ...don't have to... buy the text book for this course, you can borrow mine.
24. You ...mustn't... smoke in a gas station.
25. This bus is free ! You ...don't have to... buy a ticket.
26. You .mustn't..... enter the park if your dog is not on a leash.
2. Điền ''mustn't hoặc needn't vào chỗ trống.
1. I ...needn't... take the umbrella. It won't rain.
2. I ..needn't.... cross this bridge. It's closed.
3. We ...mustn't... be late. The train will leave in 10 minutes.
4. You ...needn't... hungry. We have plenty of time.
5. You ....mustn't.. smoke in here. It's forbidden. Look at that sign.
6. We have enough diesel, so we ....needn't.. sop here.
7. You ...needn't... come if you don't want to.
8. They ...needn't... do the washing up, they have a dishwasher.
9. You ..mustn't.... show this e-mail to anyone else. I'll trust you.
10. The students ...mustn't... forget their home work.
1. Điền động từ khuyết thiếu ''mustn't'' hoặc ''don't have to'' vào chỗ trống thích hợp.
1. There is a ''No turn right'' sign. You ..mustn't.... turn right.
2. The sign says ''No smoking''. You ....mustn't.. smoke here.
3. You ...don't have to... have an appointment for this doctor. You cam go and see him when you want.
4. You ...don't have to... tell me. I already know.
5. The big boss will be at the meeting. You ...don't have to... be late.
6. You can help me if you want to but you .don't have to.....
7. You .mustn't..... park your car there. That's the Director's place.
8. This area is off limits to everybody. You ...mustn't... come here unless you are unvited.
9. You ..don't have to.... to wear a tie in this company but they prefer it if you do.
10. You .don't have to.... criticize David. He's doing the best he can.
11. You ...mustn't... drive there. You can take the train.
12. You ...don't have to... play tennsis to enjoy watching tennis matches.
13. You ...don't have to... buy me presents though I always appreciate it when you do.
14. It's really important to remember. You ...mustn't...forget.
15. You ....don't have to.. tell anybody. It is a big secret.
16. We are already late. We ...mustn't... waste any more time.
17. This is a sterile area. It must be kept clean. You ....don't have to.. bring any food or drink in here.
18. You ....don't have to.. come at 8:00. Come at whatever time suits you.
19. You ..mustn't.... smoke in this area. It is forbidden.
20. I ...don't have to... go back again. The treatment is finished.
21. eans are not allowed in this company. You ...don't have to... wear jeans.
22. You .don't have to..... be mad to work here but it helps !
23. You ...don't have to... buy the text book for this course, you can borrow mine.
24. You ..mustn't.... smoke in a gas station.
25. This bus is free ! You ...don't have to... buy a ticket.
26. You ....don't have to.. enter the park if your dog is not on a leash.
2. Điền ''mustn't hoặc needn't vào chỗ trống.
1. I ...needn't... take the umbrella. It won't rain.
2. I ...mustn't... cross this bridge. It's closed.
3. We ...mustn't... be late. The train will leave in 10 minutes.
4. You ...mustn't... hungry. We have plenty of time.
5. You ...mustn't... smoke in here. It's forbidden. Look at that sign.
6. We have enough diesel, so we ..mustn't.... sop here.
7. You ...needn't... come if you don't want to.
8. They ...needn't... do the washing up, they have a dishwasher.
9. You ....mustn't.. show this e-mail to anyone else. I'll trust you.
10. The students ..mustn't.... forget their home work.
Viết lại câu là câu điều kiện loại 1
1.He doesn't take any exercises.He is so unhealthy =>If he takes exercises,he won't be unhealthy
2.We can’t get the ticket because I don’t have the right change.=> If i have the right change, we can get the ticket
3.Study hard or you won’t pass the exam.=>If you don't study hard, you won’t pass the exam.
4.Don’t be impatient or you will make mistakes.=>If you aren't impatient, you will make mistakes
5.My mother will have enough money.She will buy a new house=>If my mother has enough money, She will buy a new house
6.Getting up late makes him feel tired =>If he doesn't get up late, he won't feel tired
7.Henry will finish the report. He will go out for a walk=>If Henry finishes the report, he will go out for a walk
8.Do the homework for me, and i'll give you a gift =>If you do the homework for me, i'll give you a gift
9.Watching TV makes me feel relaxed=>If i watch TV, I'll feel relaxed
10. Don't tell lies to your boss or you'll be fired at once=>If you tell lies to your boss , you'll be fired at once
1.He doesn't take any exercises.He is so unhealthy
=>If He doesn't take any exercrise, he'll unhealthy
2.We can’t get the ticket because I don’t have the right change.
=> If I don't have the right change, we won't get the ticket
3.Study hard or you won’t pass the exam.
=>If you study hard, you'll pass the exam
4.Don’t be impatient or you will make mistakes.
=>If you impatient, you'll make mistakes
5.My mother will have enough money.She will buy a new house
=>If my mother have enough money, she'll buy a new house
6.Getting up late makes him feel tired
=>If he gets up late, he'll feel tired
7.Henry will finish the report. He will go out for a walk
=>If Henry finish the report, he'll go out for a walk
8.Do the homework for me, and i'll give you a gift
=>If you do the homework for me, I'll give you a gift
9.Watching TV makes me feel relaxed
=>If I watch TV, I'll feed relaxed
10. Don't tell lies to your boss or you'll be fired at once
=>If you tell lie to your boss, you'll be fired at once
Study hard 
1. If someone came -> comes into the store, smile and say, “ May i help you?’’
2. If you try these cosmetics, you look -> will look five years younger
3. If you do -> did not understand what were written in the book you could ask Mr, Pike
4. I will come to meet Mr, Pike and tell him about your problems if you didn't -> don't solve them yourself
5. Sam will not graduate unless he doesn’t pass -> passes all the tests
6. If there isn’t enough food, we couldn’t ->can't continue our journey
7. Unless your pour oil on water, it will -> won't float
8. You will have to take a taxi home if you want to leave now
9. If anyone will phone -> phones , tell them i’ll be back at 11:00
10. We can hire a minibus if there will be -> are enough people