I'm not sure ______ it's a good idea or not.A.whether B.that C.ho_英语解答

I'm not sure ______ it's a good idea or not.A.whether B.that C.how D.if

人气：377 ℃　时间：2019-08-21 19:05:31

解答

whether .or not=if意为是否,这是固定短语
初二才学的