(2012·全国卷Ⅰ)I ________ use a clock to wake me up because at six o'clock each morning the train comes by my house.
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A
couldn't
B
mustn't
C
shouldn't
D
needn't
推荐题目
It is required in our school that lights in students’ rooms ______ off by 11o’clock.
#87254
A
be switched
B
would switch
C
should switch
D
must be switched
What do you mean by saying there are only ten tickets?There be twelve.
#87596
A
could
B
should
C
would
D
can
－Oh, it’s you, Steve! I ______ you. －No surprising. I’ve just had my hair cut.
#87982
A
don’t recognize
B
haven’t recognized
C
didn’t recognize
D
hadn’t recognized
The command has just arrived that all employees ____________ in their proper uniforms before 7:00 pm.
#87183
A
will be dressed
B
must be dressed
C
were dressed
D
be dressed
— Is John coming by train ? — He should, but he ______ not. He likes driving his car.
#90278
A
must
B
can
C
need
D
may