Whilereadingabook,________.A.thegirlcameinB.mymotherwascookingC.Ihearda

发布时间:2020-08-04 14:54:58

While reading a book, ________.A.the girl came inB.my mother was cookingC.I heard a knock on the doorD.the doorbell rang

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C解析试题辨析
本题涉及到句子真正主语的问题.也就是说While reading a book中在后省略了I was,这样后面句子的主语就应该是I.因此
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