( )he has already known the news,I don't need to tell him once mo_英语解答

( )he has already known the news,I don't need to tell him once more.
A.Since B.For C.In order that D.Unless

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解答

A.Since 因为,引导从句I am interested in( )she is willing to come to the meeting.A.if B.whetherC.whatD.whichB.whether引导选择疑问从句