When the traffic lights are red, we _______ stop.
#77230
A
should
B
might
C
must
D
may
推荐题目
Li Lei knows two foreign languages. He can speak _______ English______ French.
#76947
A
either…or
B
neither…nor
C
both…and
D
so…that
–Look! Someone is cutting a tree on the moon.–It _______ be true, Granny. Our teacher says there is no air there.
#75239
A
can't
B
mustn't
C
may
D
should
No student ______ go out of the school campus after 10:00 at night without permission according to the school regulations.
#62751
A
shall
B
must
C
would
D
should