He_______have been here two hours ago, but he hasn’t_______by now.
#88191
A
might; turned to
B
should; turned up
C
could; turned in
D
must; turned on
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He did not regret saying what he did but felt that he ______ it differently.
#90433
A
could express
B
would express
C
could have expressed
D
must have expressed
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