Whodoyousupposeistheman____ourteacheristalking?
to (with,about) whom
暂无解析
Thetimehascome_____wemakeextensiveuseofnuclearenergy.
"Lookwhatyou'vedone!You______morecareful."
Hisparentswouldn'tlethimmarryanyone____familywaspoor.
Washerisamachine____(用它我们洗衣服)orapersonwhoiswashing.