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uthong1975
2 năm trước
Dựa vào tính chất liên hệ giữa thứ tự và phép cộng, hãy chứng tỏ rằng: a) Nếu m > n thì m – n > 0; b) Nếu m – n > 0 thì m > n.
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Ex 1 : Must và have to 1.I .................tell you the truth about your son. He is a liar. A. have to B.must C. has to D. must to 2. I ................... buy a new glasses. My old was broken. I can’t read without glasses. A. must B. must to C. have to D. has to 3. She .......... ..say sorry for all things she did. It was terrible. A. has to B. have to C. must D. must to 4. She ...............pay the tax for her Rolex watch. It’s legal. A. must B. has to C. have to D. must to 5. We haven’t seen Tom for long. He……………...very fat now. A. have to B. has to be C. must be D. must to 6. You. I ..............stop when the traffic light turns red. A. must B. have to C. has to D. must to 7. She is a very kind person. You ................... meet her . A. have to B. must C. must to D. has to 8. I can’t go out with you. I…………….do my homework and submit it to my teacher this afternoon. A. must B. has to C. have to D. must to 9. She saw nothing in the room. She ................... turn on the light. A. has to B. have to C. had to D. must 10. You .............................................learn harder if you want to pass the exam. A. must B . have to C. has to D. must to Ex 2 : Câu so sánh 1. Computer is as ______ tools today A. much modern than B. the most modern C. modern as D. more modern 2. A supermarket is______ a shopping centre. A. less convenient as B. not so convenient than C. less convenient than D. the most convenient as 3. Vietnam becomes______ country to foreign tourists. A. the most attractive B. the more attractive c. much attractive D. the attractivest 4. Can Tho is______ from Saigon than Bien Hoa is. A. farther B. further C. farer D. father 5. Bao Yen’s cake______ than the cakes in supermarket. A. well B. better C. gooder D. more good 6. Of all the pens, which one do you like______? A. best B. the best C. most D. the most 7. Our class starts______ the class beside. A. early than B. more earlier C. earlier D. earlier than 8. Jane is not______ her brother. A. more intelligent as B. intelligent as C. as intelligent as D. so intelligent that 9. My dad works______than anybody in his company, but he is ______ A. harder/poorest B. the hardest/the poorest C. harder/the most poorest D. harder/poorer 10. My father is______ as yours. A. old B. as old C. older D. so old

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