----- Nội dung dịch tự động từ ảnh -----
8. Christopher Columbus
A. discovered
C. had discovered
9. He fell down when he
A. run
10. We
A. still lived
American more than 500 years ago.
B. has discovered
D. had been discovering
11. They
A. will play
12. By Christmas, I
A. will have been working
C. have been working
13. I
A. am being
C. have been being
14. I
A. have been
towards the church.
B. runs
there when our father died.
B. lived still
C. was running
table tennis when their father comes back home.
B. will be playing C. play
in the room right now.
C. was still lived D. was still living
for Mr. Smith for six years.
B. will work
D. will be working
B. was being
D. am
D. had run
to New York three times this year.
B. was
C. were
D. would play
D. had been
A