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Alice received an invitation from her boss,__________came as a surprise.

A.it                              B.that                           C.which                       D.he

C


解析:

此句為非限制性從句,不能用 that修飾,而用which。it 和he 都使后句成為句子,兩個獨立的句子不能單以逗號連接。況且選he句意不通。

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