---- I can’t get through to the general manager’s office anyhow. ---- The line is busy. Someone ___________ the telephone.
#87229
A
can have used
B
can use
C
must have used
D
must be using
推荐题目
I couldn't have got to the meeting on time - _______ an earlier train .
#90401
A
if I had not caught
B
unless I had caught
C
if I did not catch
D
unless I caught
Our English teacher requested that the homework ________ tomorrow.
#87294
A
would be handed in
B
hand in
C
be handed in
D
must be handed in
—Do you know where David is? I couldn’t find him anywhere.—Well. He _________have gone far—his coat’s still here.
#89252
A
shouldn’t
B
mustn’t
C
can’t
D
wouldn’t
(2013·高考天津卷)If he had spent more time practising speaking English before，he________ able to speak it much better now.
#86615
A
will be
B
would be
C
has been
D
would have been
The workers demanded that their employer_____ their working conditions.
#86737
A
had improved
B
would improve
C
improve
D
will improve