Don’t handle the vase as if it ____ made of steel.
#87352
A
is
B
were
C
has been
D
had been
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——Do you think it necessary that he ________ to Miami but to New York? ——I agree, but the problem is ________ he has refused to. 
#90455
A
will not be sent; that
B
not be sent; that
C
should not be sent;what
D
should not send; what
But for the heavy traffic, the police ___ the thieves who tried to escape in the stolen car. 
#87591
A
would not catch
B
couldn’t have caught
C
haven’t caught
D
couldn’t catch
I____ asleep because it took me a long time to realize that the telephone was ringing.
#88031
A
could have fallen
B
should have fallen
C
must have fallen
D
mustn’t have fallen