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The main function of our teeth is to crush the hard food stuff we.......FROM......eat and to make it digestible. Therefore we should take.......GOOD........care of our teeth. We should not eat.............TOO..........much sweets, ice-cream and steaming foods...........BECAUSE..........these many spoil our teeth. It is easy for the teeth........OF........children to get decayed if they do not care.........THEM.............in the early stages of growth. We should use good toothpastes..........FOR.............cleaning our teeth. The teeth have to.......BE..............brushed after every meal. Toothache is also the result of........BAD............maintenance of teeth. If we value our teeth, we have to do..........THE..........best to keep them healthy throughout our life.

chia V
1,if she (study) studies harder,he will pass the exam
2,if the sun (stop) stopped shining,what would happen to uor planet ?
3,he would have a lot of friends if he (not be ) weren't selfish
4,if lan (know) knew the answer,she would help us finish our test now
5,if we reuse botteles and cans ,we (reduce) will reduce a large number of garbage
6,if there (not be ) isn't electicity, people can't not use household appliances
7,if he (finish ) finishes the work in time ,he will go to the ball game
8,if you (turn) turn out the light,we will be in the dark
9,if you don't hurry ,we (be) will be late for work

I.Sắp xếp lại câu sao cho nghĩa không đổi
1. we should not eat more junk food
\(\Rightarrow We\) should not eat too much junk food...........................
2.Children do more active than adults because they do more exercises
\(\Rightarrow\) Children do more exercise than adults ........BECAUSE THEY ARE ACTIVE..............
II. Dựa vào từ gợi ý,sắp xếp lại các câu sau.
1. she/think/making models/creative
SHE THINKS MAKING MODELS IS CREATIVE.
2.Vegetables/play/important/role/our meal
VEGETABLES PLAY AN IMPORTANT ROLE IN OUR MEAL.
3. It/be harmful/our/body /if/we/eat/lot/junk food
IT WILL BE HARMFUL TO OUR BODY IF WE EAT A LOTS OF JUNK FOOD.
4. we/should/eat plenty/fruits/because/they/be/good/our health
WE SHOULD EAT A PLENTY OF FRUITS BECAUSE THEY ARE GOOD FOR OUR HEALTH.

1. Unless we eat lunch now, we won't arrive at the cinema on time.
(Nếu bây giờ chúng ta không ăn trưa, chúng ta sẽ không đến rạp chiếu phim kịp giờ.)
2. The teacher will be furious if you don't do the homework.
(Giáo viên sẽ phát cáu nếu bạn không làm bài tập.)
3. I won't eat kimchi when I go to Korea unless I have to.
(Mình sẽ không ăn kim chi khi đến Hàn Quốc trừ khi mình phải ăn.)
4. If you turn on the light, you will be able to see better.
(Nếu bạn bật đèn thì bạn sẽ thấy rõ hơn.)
5. You won't be able to find the house unless you use your GPS. There’s no one around.
(Bạn sẽ không thể tìm thấy nhà nếu bạn không dùng GPS. Không có ai ở quanh đây cả.)

Ex1: (Conditionals,I wish,Past Subjunctive) Finish each of the following sentences in such a way that it means the same as the sentences printed before it
1,The only reason Jimmy often gets bad marks is because he is lazy
If Jimmy weren't lazy, he wouldn't often get bad marks.
2,We got lost because we didn't have a map
If we had had a map, we wouldn't have got lost.
3,We didn't go on holiday because we did not have enough money
If we had had enough money, we would have gone on holiday.
4,She didn't hurry,so she missed the train
If she had hurried, she wouldn't have missed the train.
5,I bought beef because I didn't know she couldn't eat it
If I had known she couldn't eat beef, I wouldn't have bought beef.
6,Providing that you leave a forwarding address,we will be able to contact you
Unless you leave a forwarding address, we will be able to contact you.
7,Unless you save some money,you will never be able to buy a car
Provided that you save some money, you will be able to buy a car.
8,The boys don't have any matches,so they can't light the fire
If the boys had some matches, they could light the fire.
Ex1: (Conditionals,I wish,Past Subjunctive) Finish each of the following sentences in such a way that it means the same as the sentences printed before it
1,The only reason Jimmy often gets bad marks is because he is lazy
If Jimmy.....weren't lazy , he wouldn't often get bad marks
2,We got lost because we didn't have a map
If we.....had a map , we wouldn't get lost
3,We didn't go on holiday because we did not have enough money
If we.had enough money , we would go on holiday ...
4,She didn't hurry,so she missed the train
If she.had hurried , she would have missed...
5,I bought beef because I didn't know she couldn't eat it
If I.... had known she couldn't eat beef, I wouldn't have bought beef.
6,Providing that you leave a forwarding address,we will be able to contact you
Unless you leave a forwarding address, we will be able to contact you
7,Unless you save some money,you will never be able to buy a car
Provided that.. you save some money, you will be able to buy a car...
8,The boys don't have any matches,so they can't light the fire
If the boys. had some matches, they could light the fire...

viết lại câu sao cho nghĩa không đổi
1. I do not buy it because I do not have enough money
--> If I had enough money , i would buy it
2. I am búy now, so I can not help you
--> If I weren't buying now , i could help you
3. There will be a shortage of water unless it rains
--> If it doesn't rain , there will be a shortage of water
4. John is fat because she eat many chips
--> If she didn't eat many chips , she wouldn't be fat
5. I will only help you if you promise to try harder
--> Unless you promise to try harder , i won't help you
6. If it does not rain soon, the srops will be lost
--> Unless it rains soon , the crops will be lost
7. I am very tired so I can not concentrate properly
--> If i weren't tired , i could concentrate properly
8.We do not have a garden , so we do not grow our own vegetables
--> If we had a garden , we would grow our own vegetables
9. He does not give you good advice because he is not your true friend
--> If he were your true friend , he would giv you good advice
10. We come late becavuse the rain is so havely
--> If the rain weren;t so heavy , we wouldn't come late
viết lại câu sao cho nghĩa không đổi
1. I do not buy it because I do not have enough money
--> If I had enough money, I would buy it.
2. I am búy now, so I can not help you
--> If I wasn't busy now, I could help you.
3. There will be a shortage of water unless it rains
--> If it didn't rain, there would be a shortage of water.
4. John is fat because she eat many chips
--> If she didn't eat many chips, she wouldn't be fat.
5. I will only help you if you promise to try harder
--> Unless you promise to try harder, I will not help you.
6. If it does not rain soon, the srops will be lost
--> Unless it rains soon, the srops will be lost.
7. I am very tired so I can not concentrate properly
--> If I wasn't very tired, I could concentrate properly.
8.We do not have a garden , so we do not grow our own vegetables
--> If we had a garden, we would grow our own vegetables.
9. He does not give you good advice because he is not your true friend
--> If he was your true friend, he would give you good advice.
10. We come late becavuse the rain is so havely
--> If the rain wasn't so heavy, we wouldn't come late.

Tìm lỗi sai và sửa
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
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

Viết lại câu sao cho nghĩa không thay đổi
1. I am not hungry, so I don't eat anything
-- If I were hungry, I would eat something.
2. She learns badly because she never does her homework.
-- If she did her homework, she would learn well.
3. He is not thirsty, so he does not drink the water
-- If he were thirsty, he would drink the water.
4. We didn't do the test well because we didn't review the lesson carefully
-- If we had reviewed the lesson carefully, we would have done the test well.
5. If he doesn't invite me, I will not come
-- Unless he invites me, I won't come.
don't have
don't have