think 引导的 I think it's impossible for him to finish it in ten minutes,-------- ---------?

问题描述:

think 引导的
I think it's impossible for him to finish it in ten minutes,-------- ---------?

I think it's impossible for him to finish it in ten minutes,【isn't it】?
impossible 是加前缀构成的带有否定意义的词,属于肯定句,所以是前肯后否.

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