Sử dụng thì đúng của các động từ này trong mỗi câu: 1. He (work) _____________ in the office now. 2. My friend (enjoy)_____________ hamburgers very much. 3. The students ( look) _____________ up these new words right now. 4. We always (do) _____________ English exercises carefully. 5. The sun (rise) _____________ in the east. 6. They (talk) _____________ to John at the moment. 7. The children (sleep) _____________ well for two hours every afternoon. 8. My sister (need) _____________ some money for books. 10. Linda (write) _____________ to David at the moment. 11. Thu (not have) _____________ any apples. She (have) _____________ some oranges. 12. Minh (watch) _____________ TV every night. he (watch) _____________ TV at present. 13. We often (swim) _____________ in the river, but today we (go) _____________ fishing. 14. They often (play) _____________ tennis. They (play) _____________ tennis at the moment. 15. Nam (ride) _____________ his bike to school everyday, but now he (walk) 9. It (rain) _____________ very much in the United States. _____________ to school. 16. Almost everyone (work) _____________ very hard. 17. This book (belong) _____________ to me. 18. My brother often (see) _____________ you and your sister at the supermarket. 19. Mr. Brown (teach) _____________ us English. 20. Please quiet! The baby (sleep) _____________ 21. Listen! Someone (knock) _____________ at the door. 8 22. Look! The train (come) _____________ 23. My father (have) _____________ breakfast at present. 24. You should (learn) _____________ hard to please your parents. 25. You shouldn’t (smoke) _____________ cigarettes. 26. We should (collect) _____________ spare cans and waste paper. 27. People should ( eat) _____________ a lot of fruit and vegetables. 28. What (be) _____________ their jobs? 29. What (your parents / do ) _____________________ in their free time? 30. My sister can (play) _____________ the piano.