Some aspects of a pilot's job be boring, and pilots often work at inconvenient hours．
#63217
A
can ; have to
B
may ; can
C
have to; may
D
ought to; must
推荐题目
—What do you think people can do for their aged parents?—They_________ do anything except to be with them and be themselves.
#75775
A
don’t have to
B
oughtn’t to
C
mustn’t
D
can’t
It doesn’t often snow in my hometown in winter, but it ___be rather cold sometimes.
#63396
A
shall
B
should
C
can
D
would
---Is there any breaking news ?--- How shameless ! The Japanese government ______nationalize our Diaoyu Islands!
#62258
A
should
B
shall
C
must
D
dare
– Whose ping pong bat is this? -- I’m not sure. I think it ______be Tom’s.
#77449
A
might
B
must
C
will
D
can’t