____you ____(hear)the girl ____(sing)in the next room in this morning?为什么不能用Have you?
问题描述:
____you ____(hear)the girl ____(sing)in the next room in this morning?为什么不能用Have you?
答
Did_you hear (hear)the girl singing(sing)in the next room in this morning?
因为有时间状语【in this morning】,只能用一般过去时
第三空【hear sb doing sth】用动名词