题目

英语语法填空!
____20____you watch them,you'll find the horse with the bell always checking on the blind one,and that the blind horse will listen for the bell and then slowly walk to ____where____ the other one is,trusting he will not _____be led____( lead ) astray.
请问20为什么要填As,不能用when吗?意思差不多吧,有什么区别?
Sometimes we are the blind horse being guided by the little ringing bell of our acquaintances; ___25____other times we are the guide horse,who helps others to find their way.
还有25为什么填at,有这搭配吗?

提问时间：2021-02-26

答案

as强调主句动作与从句动作同时发生.即watch find同时发生.
at other times是固定搭配.在其它时候