1. swimming 

2. swimming 

3. to write

4. to get

5. stop

6. to take

7. carry

8. try

9. playing

10. talking

11. visited

12. parking

13. doing

14. painted

15. to wait

16. helping

17. burning

18. to come

19. cut

20. grazing

21. to have

22. to rain | raining

23. to decide

25. meeting | to see

26. seeing | cry

27. playing

28. to go 

29. smoke | smoking

30. to get

31. get

32. to have

33. talking

34. to lock | to shut

35.  to start

36. reading

37. to do

38. pay

39. smoke | smoking

40. to rent

* Làm đến câu 22 mới nhận ra vì sao phải làm một bài dài như thế, nhưng mà lỡ rồi thì làm luôn :)

1. Tourists could see fish (swim)…………swimming……… along the brook. 2. We enjoy (swim) ……swimming…………… along this river. 3. The form teacher has asked Jack (write) ………to write…………an essay on the Thames. 4. It sometimes may be difficult (get) ……getting…………… a taxi during rush- hours. 5. The rain has made the children (stop) ………stop………… their games. 6. She tells the driver(take) ……to take……………….. her to the railway station. 7. Does Mrs. Green have them (carry) …………carry……………those books back home? 8. The principal noticed those pupils (try) …………to try………….. harder and harder. 9. Children have just stopped ( play) …………playing…………….. football. 10. They keep (talk) ………………talking…………… about an old friend they met yesterday. 11. Is Black Pool (visit) …………is visited………………. by thousands of tourists each year? 12. We heard Mr. Brown (park) ………parking……………….. his car near the gate. 13. They’ve finished (do) …………doing…………………..their homework. 14. They had their house (paint) ……………painted………….. before Tet holiday. 15. I advised him (wait) ………………to waited………………. for me at the airport. 16. Would you mind (help) ……………helping………………. me with this work? 17. Do you smell something (burn) …………burning……….. in the kitchen? 18. Mother requests her daughter not (come) …………to come…………back home late. 19. We shall have the grass (cut)…………cut…………. tomorrow. 20. They noticed lots of sheep (graze) ………to graze……………. in green meadows. 21. Would you like (have) ……………to have…………… something to eat? 22. It started (rain) ……raining………… an hour ago. Has it stopped (rain) ………raining………… yet?  8  23. My family is trying (decide)…………to decide…………where to go on holiday. 24. Our teacher made me (answer)…………answer…… .all the questions. 25. I’ve enjoy (meet) ……to meet…………. you. I hope (see) …………to see……….. you again. 26. I hate (see) ………seeing…………. a child (cry)…………crying……………... 27. They prefer ( play)……………to play…………… in swimming pool all day. 28. They refuse (go)…………to go…………….. out on trips if it’s too hot. 29. I used (smoke)………to smoke………… 20 cigarettes a day, but now I give up (smoke) …smoking……… 30. We decided (rent)……to rent………………… a house with a swimming pool. 31. Can you help me (get) …………to get…………. the dinner ready? 32. When we arrived, the people next door invited us (have)……to have………a drink with them. 33. We began (talk)……………talking………………. about next year’s holiday two months ago. 34. I remember (lock)……locking……. the door when I left but forgot (shut) …shutting……… the window. 35. He agrees (start)………………to start…………… the job as soon as possible. 36. I finished (read)……………reading…………….. the book and went to bed. 37. My teachers always expected me (do)……………………to do…………….. well in exams. 38. Let me (pay) …………………pay……………….. for the meal. You paid last time. 39. I used (smoke)………to smoke………… 20 cigarettes a day, but now I give up (smoke)……smoking…… 40. We decided (rent)………to rent……………… a house with a swimming pool.