By the time Jack returned home from England, his son_____ from college.
#102076
A
graduated
B
has graduated
C
had been
D
had graduated
推荐题目
The old couple who _______ in the deserted house for ten years have been settled in a nursing home now.
#100554
A
lived
B
have lived
C
had lived
D
have been living
After the terrorist attack last month, anyone at the airport heavy bags, bottles of liquid, or whatever, could be stopped and questioned by the police.
#103631
A
seen carrying
B
seen carry
C
seen to carry
D
seen to be carrying
— You look tired.— Yes. I ___ non-stop until 8 o’clock.
#102862
A
had worked
B
work
C
have worked
D
was working
Smith ______ a book about China last year, but I don't know whether he has finished it.
#104895
A
has wrote
B
wrote
C
had written
D
was writing