I have heard hin speak about you often heard有一种用法,这里不能用speaking么 WalkingI have heard hin speak about you often这里为什么不能用speakingWalking along the river,we heard someone shouting for help.这里为什么又能用ing了
问题描述：
I have heard hin speak about you often heard有一种用法,这里不能用speaking么 Walking
I have heard hin speak about you often
这里为什么不能用speaking
Walking along the river,we heard someone shouting for help.
这里为什么又能用ing了
答
hear sb doing 听到某人在做某事,表示动作在进行中；hear sb do 听到某人做过某事,表示动作已完成；根据句意：我听到他经常谈到你.（显然不是正在进行的动作,故不能用 speaking)walking 为现分状语,表示时间,其与句...