Some aspects of a pilot’s job__________ be boring, and pilots often ________ work at inconvenient hours．
#63540
A
can; have to
B
may; can
C
have to; may
D
ought to; must
推荐题目
—Why are your eyes so red? You _______ have slept well last night.—Yeah, I stayed up late writing a report.
#62856
A
can’t
B
mustn’t
C
needn’t
D
won’t
You’d better put on a heavy coat.Sometimes it________be very cold here at night.
#62312
A
should
B
can
C
will
D
must
—Where did you get this book?—I picked it up from a second-hand bookshop if you ______ know.
#63082
A
must
B
will
C
can
D
shall
–Look at that girl! Is it Susan? --No, it _______ be her. She has gone back to her hometown.
#78308
A
mustn’t
B
can’t
C
needn’t
D
wouldn’t