was to return to school.A.That really interested him B.What

2个回答

  • 很高兴为您

    本句考察的主语从句:

    That引导主语从句,从句的成分应该完整,that在从句中不充当任何成分.

    而本句中,从句缺少主语,引导词在从句中充当主语,因此that不行!

    which 与 what的区别在于,which有选择性,在给出几个已知选项时,可用which.

    而what不需要.

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