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        1. 【題目】My computer ________ start this morning. There must have been something wrong with it.

          A. wouldn’t B. shouldn’t C. couldn’t D. mustn’t

          【答案】A

          【解析】

          考查情態(tài)動詞。A. wouldn’t 不會; B. shouldn’t不應該; C. couldn’t 不能; D. mustn’t禁止,不允許。句意:我的電腦今早啟動不了。一定是出了什么問題。此處would表示過去的習慣或反復性的動作。故選A。

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