题目内容

【题目】________ anything about what had happened, he went to work as usual.
A.Don't know

B.Not to know
C.Not knowing
D.Not to be knowing

【答案】C
【解析】he与know之间是主动关系,再加上“know”与“went to work”这两个动作同时发生,故用现在分词的一般式。现在分词作原因状语。故答案选C。

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