Choose the best answer among A, B, C or D to complete each sentence

IV. Choose the best answer among A, B, C or D to complete each sentence.
1. He was writing to his friend when he a noise.
A. was hearing
2. How much
B. heard
these eggs?
C. had heard
A. is B. was
D. hears
C. do D. are
3. My mother... very happy when she her old friend again two days ago.
A. was/met
4.1... many people since I came here in June.
football since he was a boy.
A. met
B. has met
5. He...
A. plays
B. is playing
6. We... maths at this time last week.
A. were learning
7. When I
A. opens
B. are learning
the door, she was reading a newspaper.
D. has been/met
B. had been/met C. has been / meets
C. was meeting
D. have met
C. has played
D. played
C. learnt
D. was learning
C. was opening
D. was opened
a football match.
C. was watching
D. watching
A.
year. goes
B. has gone
C. go D. went
C. covering
D. covered
C. will have
D. had
C. went
D. goes
B. Does
C. Was
D. Is
B. opened
B. watches
8. She was playing games while he
A. watched
9. She... to Ho Chi Minh city last
10. Water... most of the Earth's surface.
A. covers
B. cover
11. 1.ee... her shirt made one month ago.
A. has
B. have
B. used to go
12. Nowadays my mother... to work on foot.