The rainbow ----(appear)until the sun came out.

问题描述:

The rainbow ____(appear)until the sun came out.
1个回答 分类:英语 2014-10-02

问题解答:

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didn't appear .此句主要考察not……until 句型.句意为:知道太阳出来彩虹才出现.
 
 
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