(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
--- Who ______ it be that is singing in the next room?--- It _______ be Lucy, but I am not sure.
#86933
A
can ; may
B
may ; can
C
can; must
D
must; may
The scientists are urging that the chemical _____．
#87240
A
is banned
B
should ban
C
be banned
D
must be banned
－Are you satisfied with her answer?－Not at all. It couldn’t have been ________.
#86980
A
any worse
B
so bad
C
much better
D
the worst
You____scold such a pupil who always keeps silent so seriously that You______hurt him.
#89532
A
should; can
B
may; will
C
mustn’t ; may
D
can’t must
—— It is rather cold here. Shall we light a fire? —— No, we＿＿＿＿＿＿because things are easy to catch fire.
#89960
A
won’t
B
can’t
C
mustn’t
D
needn’t