---Could you please come to the museum with me this afternoon?---Sorry, I ______ . I have to take a piano lesson at 2 pm.
#74382
A
couldn’t
B
mustn’t
C
can’t
D
needn’t
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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
—“Crash diets” make us lose weight fast and I am all into that. —But it_______better to work out.
#62644
A
had
B
would be
C
wouldn’t have been
D
must have been