—What a pity! Their experiment is a failure.—They ________ better under more favorable conditions.
#86419
A
should have done
B
could have done
C
must have done
D
may have done
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If we _______ adequate preparations, the conference wouldn’t have been so successful.
#87422
A
haven’t made
B
wouldn’t make
C
didn’t make
D
hadn’t made
—I wish I _________ the meeting.—But you didn’t .
#87347
A
attended
B
have atteneded
C
had attended
D
would attend
---Sorry, Professor Smith. I didn’t finish the assignment yesterday.---Oh, you___________ have done it as yesterday was the deadline.
#88212
A
must
B
mustn’t
C
should
D
shouldn’t
—Hi, Johnson, any idea where Susan is? —It’s class time, so she in the classroom now.
#87475
A
can be
B
must have been
C
might have been
D
should be