He was so deep in thought，thinking of the problem ________ he knocked into the t
题型：不详难度：来源：
He was so deep in thought，thinking of the problem ________ he knocked into the tree without noticing it.| A．when | B．while | | C．because | D．that |
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答案
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解析
D
解析 考查状语从句的引导词。so...that...表示“如此……以致……”，引导结果状语从句。句意为：他思考问题太投入了，以致一不留神儿撞到了树上。 |
举一反三
We had to be patient because it ________ some time ________ we got the full results.| A．has been；since | B．had been；until | | C．was；after | D．would be；before |
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—Someone wants you on the phone.
—________ nobody knows I am here.| A．Although | B．And | | C．But | D．So |
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—What do you think I should wear for such a formal press conference?
—Dress ________ you like.| A．how | B．what | | C．whatever | D．however |
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________ the fire breaks out，he is the first to arrive at the scene.| A．Every time when | B．Moment | | C．No matter whenever | D．Every time |
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The engineers are so busy that they have no time for outdoor sports activities，________ they have the interest.| A．wherever | B．whenever | | C．even if | D．as if |
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