Mary _______ her mother with the housework, but she didn’t.
#63072
A
must have helped
B
ought to have helped
C
must help
D
should help
推荐题目
—Could you please come to the museum with me this afternoon?—Sorry，I ________．I have to take a piano lesson at 2 pm．
#78166
A
couldn’t
B
mustn’t
C
can’t
D
needn’t
-------May I take my pet dog with me into the cinema? -------The rule says no. So you ______.
#76399
A
can
B
must
C
can’t
D
may not
What a pity! Considering his ability and experience, he ____ have done better.
#63040
A
need
B
must
C
might
D
can
She is a quiet girl at school，but sometimes she _____ be very naughty.
#62247
A
should
B
would
C
will
D
can