___ he drops in __his friends after supper.A:Sometimes,for B:Sometimes,on C:Often,for D:Seldom ,on 为什么

问题描述:

___ he drops in __his friends after supper.A:Sometimes,for B:Sometimes,on C:Often,for D:Seldom ,on 为什么

drop in on 固定搭配,意思是顺便拜访,就看B,D
D中,seldom放在前面句子要倒装,不合题意,只能选B,表示“偶尔”