Don’t use words, expressions or phrases only to people with specific knowledge. A. being

发布时间：2020-08-15 03:03:25

Don’t use words, expressions or phrases      only to people with specific knowledge.
A. being known
B. having known
C. to be known
D. known

网友回答

A. being known
B. having known
C. to be known
(答案→)D. known
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