Mark A; B; C; D

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**following questions.
Câu 14: Janet is asking an old woman on the street,
A. and how long does it take to walk to the nearest post office, please?
B. A. about 10 minutes
C. It is about 200 meters
Câu 15: There are lots of certain villages like Ba Truc. They
A. was living
Câu 16: When I last saw him, he
A. has been living
Câu 17: The water is
B. polluted
Câu 18: I must be cleaned
C. must clean
Câu 19: I had to
A. turn up
B. take up
C. has larger
D. as larger
Câu 20: A lot bigger
D. much larger**