－Shall we go hiking this Sunday? －Sorry, I _______. I’ll have to take a piano lesson.
#74286
A
may not
B
can’t
C
needn’t
D
mustn’t
推荐题目
You ___________ follow the traffic rules. Otherwise, it is dangerous for you.
#74617
A
must
B
can
C
may
D
should
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
–Excuse me, I get back my umbrella, madam? –I’m really sorry. I thought it was mine.
#74586
A
must
B
should
C
may
D
need
The first snow of every year is always so exciting, but too much snow _________ cause trouble
#62567
A
shall
B
need
C
can
D
must