问题

spects of a pilot’s job__ beboring, and pilots often work at inconvenient hours．

A:can; have to
B:may; can
C:haveto; may
D:ought to; must

正确答案是：

同类题型

With so many people __________ in English every day, it will become more and more important to have a good ___________ of English.

A: May I ________ your bikeB: Yes, you may. And you can ___ it for a day.

Everyone should learn something about first aid, because every second ____ in an emergency. [ ]

sfied______with the payment ,he took the job just to get some work experience

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