The manager ______ the worker how to do it, or the accident couldn’t have happened.
#87803
A
couldn’t have told
B
ought to tell
C
could have told
D
mustn’t have told
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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
—Need I accomplish all we have set out to do?—Yes, you ____; otherwise you ____fired.
#86820
A
need; would have been
B
may; need have been
C
can; mustn't have been
D
must; would be