—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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It was Mr. Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
#86786
A
can’t manage
B
mustn’t have managed
C
couldn’t have managed
D
couldn’t manage
—Lily went to see the movie alone. —If she _____ me about it, I would have gone with her.
#87799
A
should tell
B
tells
C
told
D
had told
The book I bought from the bookstore isn’t here. Who __________?
#89207
A
could have taken it
B
must have taken it
C
might take it
D
should take it.
--Oh,Tom! You are too late. ---Sorry. How I wish I_____measures Mr Smith suggested to leave ten minutes earlier.
#89181
A
adopted
B
would adopt
C
had adopted
D
could adopt
They didn’t attend the discussion, although they _________.
#87947
A
should
B
would have to
C
should have to
D
should have