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duyminhle1004
2 năm trước
Hình thang vuông ABCD (A=D=90 độ) có BC =10cm. M và N là trung điểm của AD và BC, khoảng cách từ M đến BC bằng nửa AD. Tính độ dài MN
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giúp em với hưa cho 5 sao EX1: Give the correct tense of the verbs: 1. If it costs too much, I (buy) ……………………….a small one. 2.If you (drive) ………………………….more carefully, you wouldn’t have so many accidents. 3.What (happen) ………………………………..if there (not be) gravity? 4.If I (make) ………………………..that mistake again, my teacher (get) ……………… angry with me. 5.If I spoke English, my job (be) ………………………..a lot easier. 6.If he (go) ………………………to London yesterday, he (meet) ……………………..his old friend. 7.Would you mind if you suddenly (win) …………half a million pounds? 8.I (lend) …………..them some money if they (ask) ………….me. 9.If we (know) ……………………who he was, we (invite) ………………him to speak at our meeting. 10.If they had invited us, naturally we (go) ……………….to the party. 11.If Don and I (have) ……….enough money, we would buy a house. 12.Ice (turn) …………………..to water if you (heat) …………………it. 13.I (speak) ……………….to France if I (see) …………him yesterday. 14.If I (realize) ………that the traffic lights were red. I (stop) …………. 15.They (not / let) ……………………….you in if you come late. 16.If you (not / go) ……………………away, I’ll send for a policeman. 17.If I (be) ……….in your place, I (accept) ………….Mr Long’s officer. 18.If I (win) …………………a big prize in a lottery, I’d give up my job. 19.If Tom (be) ………………..here yesterday, he (be) …………………able to advise us. 20.I was busy. If I (have) …………………free time, I (go) ………………to the cinema with you. EX2: Rewrite the following sentences by using conditional sentences. 11. He can’t go out because he has to study for his exam. => If………………………………………… ……….. 12. She is lazy so she can’t pass the exam. If………………………………………… ……………… 13. He will pay me tonight; I will have enough money to buy a car. => If………………………………………… …………………. 14. He smokes too much; that’s why he can’t get rid of his cough. => If………………………………………… ………………….. 15. She is very shy, so she doesn’t enjoy the party. => If………………………………………… ………………….. 16. I will get a work permit. I will stay for another month. => If………………………………………… ………………….. 17. He doesn’t take any exercises. He is so unhealthy => If………………………………………… ……………………. 18. We can’t get the ticket because I don’t have the right change. => If………………………………………… …………………….. 19. Study hard or you won’t pass the exam. => If………………………………………… ……………………….. 20. Don’t be impatient or you will make mistakes. => If………………………………………… 21. I didn’t eat lunch, I feel hungry now. => If I…………..………………………………. 22. If you want my advice,I would’t buy it. =>If I ………… ……………………………………… 23. I only come if they invite me. => unless……………………………………………. 24. He didn’t revise all his lessons, he failed the exam. => If he………………………………………… …………….. 25. The park is over there, only 5 minutes’ walk. => If you walk……………………………………………. 26. In case it rain, we’ll stay at home =>If it ………………………………………………….. 27. Let me give you my advice. You should cut down on smoking right now. => If I ………………………………………………………………………… 28. They are poor, so they can’t help us. ……………………………………………. 29. She is very shy; that’s why she doesn’t enjoy parties. ……………………………………………. 30. He is very unhealthy because he doesn’t take any exercise. …………………………………………….

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