We can hardly believe that an intelligent person like Daniel ________ be asking such a silly question.
#62552
A
should
B
might
C
must
D
could
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—I don’t mind telling you what I know. —You _____. I can manage it myself. 
#63188
A
mustn’t
B
ought not to
C
can’t
D
don't have to
His failure suggested that he   the teacher’s suggestions.
#62975
A
can’t have followed
B
needn’t follow
C
mustn’t have followed
D
shouldn’t follow