Some aspects of a pilot’s job__________ be boring, and pilots often ________ wor
题型：不详难度：来源：
Some aspects of a pilot’s job__________ be boring, and pilots often ________ work at inconvenient hours．| A．can; have to | B．may; can | C．have to; may | D．ought to; must |
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答案
| A |
解析
| 考查情态动词。Can表示可能，have to 必须；不得不 |
举一反三
After hours of repair, the driver tried to start the machine but it _________ work.| A．won’t | B．shouldn’t | C．wouldn’t | D．couldn’t |
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I _____ have watched that movie --- it’ll give me horrible dreams.| A．couldn’t | B．needn’t | C．shouldn’t | D．mustn’t |
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— I want someone to write the composition for me.
— No! It’s a rule in our school that as a student, you _______ depend on yourself. | A．shall | B．will | C．can | D．should |
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— I haven’t got the reference book yet, but I’ll have a test on the subject next month.
— Don’t worry. You ________ have it by Friday.| A．could | B．shall | C．may | D．must |
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