It long before we the result of the experiment．A．will not be；will
题型：不详难度：来源：
It long before we the result of the experiment．| A．will not be；will know | B．is；will know | | C．will not be；know | D．is; know |
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答案
| C |
解析
| 考查固定句型。It be 一段时间 before从句。意为：一段时间以后某事才发生。Before从句里用一般现在时代替将来时，主句用将来时。故C正确。 |
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