—Why are those people gathering in the middle of the street?—I don’t know. There ________ be an accident.
#63511
A
shall
B
should
C
can
D
might
推荐题目
These shoes aren’t comfortable. You __________ wear them.
#75671
A
should
B
could
C
shouldn’t
D
can
—Must I finish my homework right now? -- No, you ___, you ___finish it tomorrow morning.
#76122
A
mustn’t, can
B
needn’t, must
C
don’t have to, may
D
can’t, have to
As it turned out to be the most important meeting in the year, you ____ so casually. 
#62823
A
Shouldn’t dress up
B
shouldn’t have dressed up
C
needn't have dressed up
D
couldn’t dress up