(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.
#86531
A
couldn't
B
mustn't
C
shouldn't
D
needn't
推荐题目
He________ the person referred to be put in prison.
#90406
A
said
B
demanded
C
agreed
D
thought
He _______ Shanghai, for I saw him talking with the headmaster a moment ago.
#90144
A
must have gone to
B
can’t have gone to
C
mustn’t have been to
D
can’t have been to