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
 I told Sally how to get here, but perhaps I ______for her.
#62233
A
had to write it out
B
must have written it out
C
should have written it out
D
ought to write it out