–Look! The boy is running fast! –He might ______ to catch a bus.A．runB．runningC
题型：不详难度：来源：
–Look! The boy is running fast! –He might ______ to catch a bus.| A．run | B．running | C．is running | D．be running |
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答案
| D |
解析
试题分析：句意：看，那个男孩跑的真快。他可能在赶公共汽车。根据题干中The boy is running fast可知此处是两人在推测正在发生的事，故用情态动词+be+-ing ，表示对正在发生的事情的推测。选D。 |
举一反三
–Look! Someone is cutting a tree on the moon.
–It _______ be true, Granny. Our teacher says there is no air there.| A．can"t | B．mustn"t | C．may | D．should |
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You ______ write the poem down. Our teacher will give us a copy.| A．can’t | B．shouldn’t | C．needn’t | D．mustn’t |
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–Who is the tallest boy?
–It ______ be John. Because John is of medium height..| A．must | B．needn’t | C．might | D．can’t |
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________ you row a boat at the age of 10? No, but now I ________.| A．Can；can | B．Can；could | C．Could ；can | D．Could；could |
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—Must I take part in the activity?
—No, you _______. You’re too young. You should look after yourself.
A. mustn’t B. can’t C. don’t have to |
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