By the time Jack returned home from England, his son. from college.
#102659
A
graduated
B
has graduated
C
had been
D
had graduated
推荐题目
I didn’t hear the telephone ringing. I _____.
#103291
A
slept like a dog
B
slept like a pig
C
slept like a mouse
D
slept like a log
By the time Billy was 6, he in the sea.
#101498
A
had already swum
B
was already swimming
C
has already swum
D
already swam
China sent up Shenzhou VII manned spaceship into spaceship successfully, which shows that science and technology ______ rapidly in China.
#104916
A
has been developing
B
develops
C
developed
D
has developed
Thousands of families killed and many children were left withoutparents.
#101659
A
is
B
are
C
was
D
were
-----Are you still very busy?-----Yes, I ______ the report for the manager and it won’t take long.
#100851
A
have just finished
B
am just finishing
C
had just finished
D
am just going to finish