—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.—Oh, dear! She _______ a lot of difficulties!
#89683
A
may go through
B
might go through
C
ought to have gone through
D
must have gone through
推荐题目
While watching television, __________.
#90451
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
You didn’t let me drive. If we _______ in turn, you _______ so tired.
#87398
A
drove; didn’t get
B
drove; wouldn’t get
C
were driving; wouldn’t get
D
had driven; wouldn’t have got