题目内容
10.Are you ________ a bus?( )| A. | wait | B. | wait for | C. | waiting | D. | waiting for |
分析 你在等一辆公交车吗?
解答 答案:D.等待wait for,表达的是正在进行的事情,用现在进行时be+doing,故选D.
点评 现在进行时表示正在进行的动作或存在的状态.现在进行时表示动作发生的时间是"现在",动作目前的状态是"正在进行中".
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