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thaoquyenfbb
2 năm trước
Quy tắc cộng trừ nhân chia số thập phân giống như bài dưới trình bày dễ hiểu, ngắn gọn, đi kèm ví dụ KHÔNG MẠNG 6,35 + (-7,61) = -5,26 - 4,69 = -3,14 . (-6,27) = 13,92 : (-3,2) =
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Exercise3: Rewrite the following sentences: 1. Study hard or you won’t pass the exam.=> If………………………………………………………………….. 2. Don’t be impatient or you will make mistakes.=> If…………………………………………………………………….. 3. I only come if they invite me.=> unless………………………………………………. 4. Leave me alone or I’ll call the police.=>Unless………………………………………………………… 5. You must tell me the whole truth or I won’t help you.=> Unless…………………………………………… 6. Don’t tell lies to your boss or you’ll be fired at once.=> If…………………………………………………………  Chia động từ trong ngoặc 1) If I (study) …………………………, I (pass) …………………….. the exams. 2) If the sun (shine) …………………………, we (walk) ………………………… to the town. 3) If he (have) ………………………… a temperature, he (see) ………………………… the doctor. 4) If my friends (come) …………………………, I (be) ………………………… very happy. 5) If she (earn) ………………………… a lot of money, she (fly) ………………………… to New York. 6) If we (travel) ………………………… to London, we (visit) ………………………… the museums. 7) If you (wear) ……………… sandals in the mountains, you (slip) ………………… on the rocks. 8) If Rita (forget) …………… her homework, the teacher (give) ………………… her a low mark. 9) If they (go) ………………………… to the disco, they (listen) ………………………… to loud music. 10) If you (wait) ………………………… a minute, I (ask) ………………………… my parents. Hoàn thành các câu sau đây theo điều kiện loại 1 của những từ trong ( ). 1) If we __________ (to send) an invitation, our friends __________ (to come) to our party. 2) He __________ (not/to understand) you if you __________ (to whisper). 3) They __________ (not/to survive) in the desert if they __________ (not/to take) extra water with them. 4) If you __________ (to press) CTRL + s, you __________ (to save) the file. 5) You __________ (to cross) the Channel if you __________ (to fly) from Paris to London. 6) Fred __________ (to answer) the phone if his wife __________ (to have) a bath. 7) If Claire __________ (to wear) this dress at the party, our guests __________ (not/to stay) any longer. 8) If I __________ (to touch) this snake, my girlfriend __________ (not/to scream). 9) She __________ (to forget) to pick you up if you __________ (not/to phone) her. 10) I __________ (to remember) you if you __________ (to give) me a photo.

Exercise 2: Put the verbs in brackets into the correct forms. 1. What will happen if my parachute (not open)…………………………………? 2. If she (need) …………………………………a radio, she can borrow mine. 3. What you (do) …………………………………when you come to the party tonight? 5. If I lend you 10 dollars, when you (repay) ………………………………… me? 6. Unless you are more careful, you (have) …………………………………an accident. 7. Ice (turn) …………………………………to water if you heat it. 8. Unless I have a quiet room, I (not be able) …………………………………to do any work. 9. He'll be late for the train if he (not go) …………………………………at once. 10. Tell him to phone me if you (see) …………………………………him. 11. If he were in, he (answer) …………………………………the phone. 12. If he worked more slowly he (not make) …………………………………so many mistakes 13. The plants will die unless you (water) …………………………………them everyday. 14. Dial 113 if you (want) ………………………………… to call the police. 15. I’d take the lift if I (be) ………………………………… the man. 16. Unless we (preserve) ………………… natural resources, the planet will be in danger. 17. If I see him, I (give) ……………………………… him a gift. 18. If I had a typewriter, I (type) …………………………….. the report myself. 19. If he (study) ……………………………….. hard, he can pass the exam. 20. Rice plants (grow) …………………………. well if there is enough rain.

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