You ______ tell Margaret --- I don’t want her to know about this matter .
#87995
A
can’t
B
mustn’t
C
needn’t
D
shouldn’t
推荐题目
 I _______ have been more than six years old when the accident happened.
#89803
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t
What a pity! Considering his ability and experience, he ____ better.
#87929
A
need have done
B
must have done
C
can have done
D
might have done