the witness insists that she__the thief while he was stealing 应该填saw,请问为什么呢

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the witness insists that she__the thief while he was stealing 应该填saw,请问为什么呢

the witness insists that she__the thief while he was stealing 应该填saw,请问为什么呢
the witness insists that she__the thief while he was stealing 应该填saw,请问为什么呢

the witness insists that she__the thief while he was stealing 应该填saw,请问为什么呢
这是个宾语从句,宾语从句的用法有几种,其中一种是主句(the witness insists )用一般现在时态,从句可用任意时态,然而这个从句里面还有一个完整的句子,他是说当这个小偷偷东西was stealing的时候他看见了,那么是在过去,而为什么不用过去进行时(was seeing)呢?因为see是一个不可延续动词,不能这样用.所以用saw.