Your son has kept _________ for two hours. You’d better ask him to have a rest.A
题型：不详难度：来源：
Your son has kept _________ for two hours. You’d better ask him to have a rest.| A．study | B．studied | C．to study | D． studying |
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答案
| D |
解析
| keep doing sth表示不断地做某事，故本题选D。 |
举一反三
By local doctors and nurses ,we hope to help even more people .| A．training | B．trained | C．train | D．to train |
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The student is afraid _________ English with foreigners.| A．to practice to speak | B．to practice speaking | | C．practicing speaking | D．of practicing to speak |
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Eddie is lazy enough _________all day without _________.| A．asleep；to move | B．to sleep：to move | | C．to sleep；moving | D．sleeping；moving |
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| I’d rather ________ a teacher when I grow up． |
I’m very sorry to keep you _____ for a long time| A．wait | B．waits | C．waiting | D．to wait |
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