16. Is she beautiful enough to become Miss World?
17.He spent two hours finishing his Math exercises
18. Nam told Lan to show him her photos
19. It's essential to practice English everyday
20. We have participated in the science club since last year
21. My sister asked me how that machine operated.
22. Nam is not as tall as his father
23. She used to eat a lot of candies.
24. I haven't eaten Chinese food since i got allergic reaction
25. She has studied English for two years
26. Madison advised me not to put my books on the chair
27. The folktale has a meanful ending.
28. Hoa is more intelligent than Mai
29. My father used to smoke a lot
30. It's dangerous to swim across this river
Xin ctlhn nhé<3