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----- Nội dung dịch tự động từ ảnh -----
15. I'll come and see you before I
A. leave
B.
will leave
16. The little girl asked what
A. has happened
C. had happened
17. John
A. is reading
18. He said he
A. will
a book when I saw him.
B. read
return later.
B. would
the door.
19. Jack
A. has just opened
C. have opened
20. I have been waiting for you
A. since early morning
C. for two hours
21. Almost everyone
A. leave
22. By the age of 25, he
A. wrote
B. left
B. writes
for the States.
C. have left
to her friend.
B. happened
D. would have been happened
C. was reading
C. can
B. open
D. opening
B. since 9 a. m
D. All are correct
for home by the time we arrived.
C. leaves
two famous novels.
D. shall leave
C. has written
D. reading
D. would be
D. had left
D. had written