Câu 1.if you anwser this question, you ... crazy .
Câu 2. If you help me, you... love me.
Help me
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Do n+3\(⋮\)n+3 (*) => (n+3)2\(⋮\)n+3 hay n2+6n+9\(⋮\)n+3
=> n2+6n+9-(n2-7)\(⋮\)n+3 hay 6n+16\(⋮\)n+3
Từ (*) => 6n+18\(⋮\)n+3
=> 6n+18-(6n+16)\(⋮\)n+3 hay 2\(⋮\)n+3
=> n+3 \(\in\){-2;-1;1;2}
Vậy n \(\in\){1;2;4;5}
Ta có: \(n^2-7⋮n+3\Leftrightarrow n^2-9+2⋮n+3\Leftrightarrow\left(n-3\right)\left(n+3\right)+2⋮n+3\)
\(\Rightarrow\)\(2⋮n+3\)
Vậy n+3 là Ước của 2
Ta có bảng sau:
n+3 | 1 | 2 | -1 | -2 |
n | -2 | -1 | -4 | -5 |
Vậy n=....
1. If you take my advice, you .............will be.......... (be) happy.
2. What would you do if you ...........were............. (be) me?
3. If you .............lend........... (lend) me some books I will give them back in two weeks.
4. I ...............would have sent......... (send) her a letter if I had found her address.
5. She .............would not have stolen ........... (not/steal) the bread if she hadn't been hungry.
6. If she ..............comes.......... (come) here I will tell her about the film.
7. I will be unhappy if you ..............leave.......... (leave) me.
8. If you hadn't been so crazy you ..........would not have bought.............. (not/buy) this expensive house.
9. If the sun .............shines........... (shine) I will go to the beach.
10. If I ..............won.......... (win) the lottery I would leave my country.
1. If you take my advice, you ..........will be.............. (be) happy.
2. What would you do if you ...........were............. (be) me?
3. If you ............lend............ (lend) me some books I will give them back in two weeks.
4. I ...........would have sent............. (send) her a letter if I had found her address.
5. She ...........wouldn't have stolen............. (not/steal) the bread if she hadn't been hungry.
6. If she ...........comes............. (come) here I will tell her about the film.
7. I will be unhappy if you ...........leave............. (leave) me.
8. If you hadn't been so crazy you .............wouldn't have bought........... (not/buy) this expensive house.
9. If the sun ..........shines.............. (shine) I will go to the beach.
10. If I ...........won............. (win) the lottery I would leave my country.
47.wears; won't stay
48. touch ; won't scream
49 will forget ; don't phone
50.will remember ; give
51 .help; will do
52.will water; stays
53. has; will buy
54.offer ; will take
55 will have ; live
Chào em, em tham khảo nhé!
47) If Claire wears (wear) this dress at the party, our guests won't stay (not stay) any longer.
48) If I touch (touch) this snake, my girlfriend won't scream. (not scream).
49) She will forget (forget) to pick you up if you (not phone) don't phone her.
50) I will remember(remember) you if you give (give) me a photo.
51) If you help (help) your grandma, I will do (do) the shopping.
52) Andrew will water(water) the flowers if he stays (stay) at home.
53) If she has (have) 5 pounds more, she will buy (buy) herself this T-shirt.
54) If they offer (offer) me the job, I will take (take) it.
55) You will have (have) summer holidays from June till August if youl ive (live) in the USA.
Chúc em học tốt và có những trải nghiệm tuyệt vời tại olm.vn!
Chào em, em tham khảo nhé!
1.l can't finish this task if you don't give me a hand.
=> Unless you give me a hand, I can't finish this task.
2.You will run out of money if you don't stop wasting it.
=> Unless you stop wasting money, you will run out of it.
3.Don't call me unless it is an emergency.
=> If it is not an emergency, don't call me.
4.James will not pass the test unless he studies harder.
=> If Jame doesn't study harder, he will not pass the test.
5.If Jane finishes her work before 6 pm, she will dine out with her friends.
=> Unless Jane finishes her work before 6 pm, she will not dine out with her friends.
6. Unless my brother finds a companion, he won't go travelling this summer
7. If you don't listen attentively to the teacher, it is not easy to do these exercises
8. Unless Jim submit his essay before Tuesday, he will be punished by the teacher
ĐIỀN VÀO CHỖ TRỐNG
- I .will send .... (Send) her a letter if I had found her address
- She .won't steal.. (not/steal) the bread if she hadn't been hungry
hc tốt
GOOD LUCK
1. We (do) ___________will do_______ this for you if you (want) __want______.
2. If we (need) ____________need_______ some help, we ( ask) ___will ask_____.
3. If Peter (stay) ___stays____ with his grandparents, Susan (not be) ____won't be____ happy.
4. If we (win) ____win____ the money, we (buy) _____will buy__________ a new house.
5. She (not write) ________won't write_______________ to you if she ( leave) __leaves_.
6. We (go) ___________will go________ on holiday if there ( be ) __is___ time.
7. If we_____plant_____(plant) more trees, the air_____will be______(be) fresher.
8. If the soil_____is______(be) polluted, the vegetables______will die_______(die).
9. Unless he______calls______(call) me, I_______will stay________(stay) at home.
10. If the weather ( be ) __is___ very good, we (go)___will go__out this afternoon.
11. If a student____recycles_____(recycle) the papers, he____will save_____(save) energy.
12. If we ( invite ) _______invite_________she ( attend ) ______will attend____our meeting.
13. We ( keep ) _____will keep____fit if we ( ride ) ____ride____bicycles to school.
15. If she ( have ) _____has____time , she ( attend) _will attend____our party.
16. There ( not, be ) ____won't be_____accidents if people ( be ) __are___careful on the road.
17. If we ( continue ) ___continue____destroying the environment, our life ( be ) __will be___destroyed.
18. She ( be ) ____will be_____happy if you ( visit ) ____visit____her tonight.
19. If people ( watch ) ___watch_____TV too much, their life ( be ) ___will be____affected.
20. He ( win ) ____will win____the gold medal if he ( practice ) ______practices___hard.
1. will do- want
2. need- will ask
3. stays- will not be
4. win- will buy
5. ko hiểu rõ lắm
6. will go-is
7. plant- will be
8. is- will die
9. calls- will stay
10. is- will go
11. recycles- will save
12. invite- will attend
13. will keep- ride
15. has- will attend
16. will not be- ko rõ
17. continue- will be
18. will be- visit
19. watch- will be
20. will win- practices
1 are
2are
2 câu này có nghĩa
Câu 1. nếu bạn trả lời câu hỏi này, bạn ... điên.
Câu 2. Nếu bạn giúp tôi, bạn ... yêu tôi.