未知题型

As a public relations officer, he is said ________ some very influential people.
A) to know B) to be knowing C)to have been knowing D)to have known

【参考答案】

A
know这个词一般不用进行时，排除B、C。
这题主要就是A和D之间纠结了。to kn......

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As a public relations officer, he is said ________ some very influential people.A) to know B) to be knowing C)to have been knowing D)to have known

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As a public relations officer, he is said ________ some very influential people.
A) to know B) to be knowing C)to have been knowing D)to have known