"We must keep a secret of the things
"We must keep a secret of the things____here," the general said____"We must keep a secret of the things____here," the general said____ at the man in charge of information office. A.having been discussed,and seriously staring B.to be discussed,seriously stared C.discussed, and stared seriously D.being discussed,seriously staring 请老师详细解答,谢谢老师.
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问：working hard vs. hard working
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