7. This is the first time I have ever saw this film. ⇒ D. saw (→ seen)
8. She buyed a beautiful villa for her parent 2 years ago. ⇒ A. buyed (→ bought)
9. The children have put away their toys but they didn’t make their beds yet. ⇒ D. didn’t make (→ havent made)
10. Jim learned a lot since he started the language course. ⇒ A. learned (→ has learned)
11. They haven’t seen each other since September when they have met at Mary’s party. ⇒ C. have met (→ met)
12. Peter has bought a new MP3 player yesterday but I haven’t seen it already. ⇒ A. has bought (→ bought)
13. The hockey player hit his head on Friday and he was in hospital since then.⇒ B. was (→ has been)
14. He gave lectures to foreign tourists about traditional food and games recently. ⇒ A. gave (→ has given)
15. My niece can already read by the time she was 4 years old. ⇒ A. can (→ could)
16. The most common traffic problem in city around the world is traffic jams. ⇒ cities
17. Thanksgiving is traditional celebrated with a feast among family and friends. ⇒ traditionally
18. Villagers voluntarily contributing money and other things to celebrate the festival. ⇒ contribute
19. Tom Hank is one of the most famous actor in Hollywood. ⇒ actors
20. We prefer living in the countryside because it has fewer pollution than the city. ⇒ less
21. There are more opportunities to find jobs in Hong Kong as in Bangkok. ⇒ opportunity
22. Your uncle works in Ha Noi for one year and then moved to Da Nang, didn’t he? ⇒ a
23. There used to be less unemployed people in this city five years ago. ⇒ unemployment