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_____ we would not have succeeded in our experiment.
A.Without you helped us
B.But for you helped us
C.But you helped us
D.If you had not helped us
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A.Without you helped us
B.But for you helped us
C.But you helped us
D.If you had not helped us
The business is risky. But______we would be rich.
A.should we succeed
B.would we succeed
C.might we succeed
D.could we succeed
If we ______ yesterday, we ______ the work.
A.weren't interrupted... would finish
B.didn't interrupt... would have finished
C.hadn't interrupted... had finished
D.hadn't been interrupted... would have finished
It is high time that we ______all ready for the meeting, ______it would be late.
A. must get, or
B. got, or
C. should get, and
D. get, and
We should be grateful if you would reply at your_________ convenience.
A.lasted
B.earliest
C.earlier
D.the earliest
A.took
B.thought
C.made
D.knew
______no air or water, there would be no life in the world.
A. There was
B. There were
C. Is there
D. Were there
Mr. Smith would just rather we ______ now, but we must go to work.
A.not leave
B.didn't leave
C.are not to leave
D.won't leave
We ______ last night, but we went to the cinema instead.
A. must have studied
B. might study
C. should have studied
D. would study
A.less, less
B.fewer, fewer
C.less, fewer
D.fewer, less
We would much ______ it if you could do us a favor.
A.associate
B.prove
C.appreciate
D.praise
If we ______ the bus, we ______ the concert in the theatre now.
A.miss, are enjoying
B.hadn't missed, would be enjoying
C.didn't miss, are enjoying
D.hadn't missed, would have been enjoying