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luongdunghn
2 năm trước
. Gọi A là công cơ học, t là thời gian thực hiện công thì công thức đúng để tính công suất là A. . B. . C. . D. .
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Complete these sentences with used to or didn’t use to. 1. My father gave up smoking two years ago. He (smoke) _____ a packet of cigarettes a day. 2. There (be) _____ a movie theater here but it closed a long time ago. 3. Mr. An (not/ drink) coffee when he was young but he likes it now. 4. Peter (have) _____ a motorbike, but last month he sold it and bought a car. 5. I (not/ like) her but we are best friends now. 6. They came to live in the city last year. They (live) ______ in a small village in the country. 7. My sister (play) ______ tennis a lot but she doesn’t play very often now. 8. When I was a child I (not/ study) ______ hard. VII. Read the text and answer the questions that follow. I remember the days when I was still a little girl. When the New Year cam, my mother used to tell me not to cry, she used to take me to the market and buy new clothes for me, she used to make sticky rice square cakes and cook them all night. She used to go to the flower market to buy some fresh flowers. My father used to pain the walls and redecorate the house and he used to help my mom with housework. Now my parents are old and I am grown up so I do everything myself. But I still remember the days… 1. What did your mother use to tell you when the New Year came?_________________________________________ 2. Where did she use to take you and what did she buy you?____________________________________________ 3. What did she use to make?________________________________________________________________ 4. Where did she use to go?_________________________________________________________________ 5. What did your father use to do?_________________________________________________________________ 6. Do your parents do those things nowadays? Why or Why not?_________________________________________

15.It’s noisy at night -> ………………………………………………… V. H·y viÕt l¹i c¸c c©u sau: 1. He doesn’t raise dogs anymore.-> He used to……………………………………………….. 2. She doesn’t get up late anymore. -> She used……………………………............................. 3. They don’t go fishing now. –> They used…………………………………………………... 4. I don’t stay up late any more.-> I used……………………………………………………… 5. Hoa doesn’t do morning exercises anymore.-> Hoa used…………………………………... 6. He often lived in the City.=> He used……………………………………............................. 7. Tom usually smoked last year.=> Tom used………………………………………………... 8. I don’t get bad mark now.=> I used…………………………………………………………. 9. Hung used to go fishing when he was small.=> Hung often………………………………... 10. Peter used to play soccer when he was a student.=> Peter often…………………………... 11. I don’t take bus to school now.=> I used…………………………………………………... 12. He doesn’t walk to school => He used…………………………………………………….. 13. There wasn’t electricity.=> There didn’t use……………………………............................. 14. The air isn’t fresh now=> The air used…………………………………………………….. 15. The environment wasn’t polluted.--> The environment didn’t…………………………………. 16.They once started these machines by hand.-->They used 17.My father doesn’t work in this company any longer.-->My father used 18.Mary doesn’t spend as much money as she used to.-->Mary used 19.Driving on the left makes me feel difficult.-->I am not 20.Working until midnight doesn’t bother me.-->I am 21.This is the first Time Jimmy has played basketball.-->Jimmy is

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