We were about to go out for a walk ______ it began to rain.A．whileB．beforeC．asD．
题型：不详难度：来源：
We were about to go out for a walk ______ it began to rain.| A．while | B．before | C．as | D．when |
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答案
| D |
解析
试题分析：考查固定句式。固定句式：be about to do sth when…正要做某事在这时…。本题中的when是一个并列连词，意为：在那时；故D正确。
点评：固定句式：be about to do sth when…正要做某事在这时…。本题中的when是一个并列连词，意为：在那时；对于这样的固定句式，平时要加强识记。 |
举一反三
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A. as far as B. as much as C. as long as D as many as |
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