With temperature ______ so rapidly, we could not go with the experiment．A．fallB．
题型：不详难度：来源：
With temperature ______ so rapidly, we could not go with the experiment．| A．fall | B．falling | C．fallen | D．to fall |
|
答案
| B |
解析
| 考查with的复合结构。因为温度快速下降我们不能做实验了。 temperature与fall为主谓关系用现在分词所以选B |
举一反三
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before its surface cooled．| A．to be hit | B．to have hit | C．to have been hit | D．to hit |
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