The airplane _____late, for we didn’t see the famous pop singer until 10 pm.
#88058
A
must be
B
will be
C
would have been
D
must have been
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The manager insisted that the work ____ finished by the end of this month. 
#87830
A
should be
B
will be
C
must be
D
ought to be
--- Why is Jenny still standing there? It’s so cold.—She _____ for someone.
#90161
A
can wait
B
might have waited
C
must be waiting
D
should have waited
— May I stop here? — No, you _____.
#90212
A
mustn’t
B
might not
C
needn’t
D
won’t