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We should find out whether it is useful for us to read 中用whether好还是what好

分类: 作业答案 • 2021-12-31 13:37:07

问题描述：

We should find out whether it is useful for us to read 中用whether好还是what好

答

用whether. 因为从句里已经有主语it了.所以就不能用what了.