11. Is Black Pool (visit) …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 wait…………………………. 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) …grazing…………………. 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?

23. My family is trying (decide)…to decide…………………where to go on holiday.

24. Our teacher made me (answer)…answer…………… .all the questions.