语法词汇练习 语法大全 语法详解 英语听力 
It ______ be the postman at the door. It’s only six o’clock.
#63562
A
mustn’t
B
can’t
C
won’t
D
needn’t
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---Who’s the woman in red ? Is it Mrs. White?---It          be her. She went to Beijing yesterday.
#75588
A
mustn’t
B
can’t
C
shouldn’t
D
must
Must I move the table? No, you _____________.
#76039
A
may not
B
needn't
C
mustn't
D
aren't
—Look at the sign! —Oh, I see.We _______ waste water.
#77631
A
can
B
must
C
mustn’t
D
needn’t
Susan’s parents have bought a large house with a swimming pool.It      be very expensive.
#76457
A
must
B
can
C
mustn’t
D
can’t
—Do you want to play basketball after school, Jack?—   . I have to practice my English.
#75426
A
Yes, I do
B
Let’s go
C
Sounds great
D
Sorry, I’m busy