As a graducate in computer science, he ___ to work out the problem.
#89044
A
wouldn't have failed
B
can't have failed
C
mustn’t have failed
D
might not have failed
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Mr. Brown, a good friend of mine, __________ us but that he was short of money at the time.
#89710
A
would help
B
would have helped
C
had helped
D
helped
—You didn’t wait for Mr. Black last night, did you? —No, but we ____. He didn’t return home at all.
#89202
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have
If we a table earlier, we couldn’t be standing here in a queue.
#86871
A
have booked
B
booked
C
book
D
had booked
Where is my ball? I remember I put it here yesterday. --You it in the wrong place.
#90266
A
must put
B
might put
C
should have put
D
might have put