33, Daisy said Peter had better learn harder for the final exam
34, Ba has never gone to Ho Chi Minh City
35, Despite being a poor student,Tom learns very well
36, Singapore is said to be green and clean
37, The only thing which makes me worried is how to go home
38, The water in this lake is too dirty to swim in
39, Mary couldn't go to school yesterday because of her sickness
40, Thank you very much for helping me with the work.
1, C
2, B
3, D
4, A
5, B
~Chúc bạn học giỏi!~
