Last week I wrote to the hotel to book a room,but they _____ yet.LastweekIwrotetothehoteltobook a room,but they _____ yet.A.didn't answerB.wasn't answeringC.hadn't answered D.haven't answeredyet不是要用完成时态么,为什么答案选A呢?

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Last week I wrote to the hotel to book a room,but they _____ yet.LastweekIwrotetothehoteltobook a room,but they _____ yet.A.didn't answerB.wasn't answeringC.hadn't answered D.haven't answeredyet不是要用完成时态么,为什么答案选A呢?
Last week I wrote to the hotel to book a room,but they _____ yet.
LastweekIwrotetothehoteltobook a room,but they _____ yet.
A.didn't answer
B.wasn't answering
C.hadn't answered
D.haven't answered
yet不是要用完成时态么,为什么答案选A呢?

Last week I wrote to the hotel to book a room,but they _____ yet.LastweekIwrotetothehoteltobook a room,but they _____ yet.A.didn't answerB.wasn't answeringC.hadn't answered D.haven't answeredyet不是要用完成时态么,为什么答案选A呢?
yet是副词 可以和连词but 连用
but yet 然而、可是
这里强调的是动作 故用一般过去时
其实 yet 可以用在 不同的时态中 无论肯定和否定.
如 he will win yet.他还会赢.

在现在完成时的句子中,already常用于肯定句,yet常用于否定句和疑问句,但yet还有其他用法。 1. 用于否定句中,意思是还、尚、迄今、到那时”。例如 he is not yet here. 他还未到。 at three o”clock they had not yet decided whether to play basketball or not. 三点钟时他们尚未决定是否去打篮球。 ...

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在现在完成时的句子中,already常用于肯定句,yet常用于否定句和疑问句,但yet还有其他用法。 1. 用于否定句中,意思是还、尚、迄今、到那时”。例如 he is not yet here. 他还未到。 at three o”clock they had not yet decided whether to play basketball or not. 三点钟时他们尚未决定是否去打篮球。 2. 用于疑问句中,意思是已经”。例如 is everything ready yet ? 一切都准备好了吗? 3. 与比较级连用,意思是更”。例如 you must work yet harder. 你还需更努力地工作。 4. 与once , again , another 连用,意思是再”。例如 he has made yet another mistake. 他又犯了一个错误。 5. 用于肯定句中,意思是仍然、还得”。例如 she is yet a child. 她还是个孩子。 6. 用作并列连词时,意思是然而、可是”。例如 he studied hard yet he failed. 他学习努力,可是考试仍未及格。

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