Choose the correct answer

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attneilithichtic
17. John
A. is reading B. read
18. He said he
A. will
a book when I saw him.
19. Jack
return later.
B. would
the door.
C. was reading D. reading
21. Almost everyone
A. leave
B. left
22. By the age of 25, he
A. has just opened
C. have opened
20. I have been waiting for you
A. since early morning
C. for two hours
thichtienganh.com
D. would be
C. can
B. open
D. opening
B. since 9 a.m
D. All are correct
for home by the time we arrived.
C. leaves
D. had left
two famous novels.