作业帮5.I’m not sure___ he will come back home tomorrow or not.A.if B.what C.whether D.where
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/13 03:40:36
5.I’m not sure___ he will come back home tomorrow or not.A.if B.what C.whether D.where
5.I’m not sure___ he will come back home tomorrow or not.A.if B.what C.whether D.where
5.I’m not sure___ he will come back home tomorrow or not.A.if B.what C.whether D.where
选c
whether ...or not 是个固定搭配.意思是会.
常用于否定句和疑问句中.