英语语法填空!
____20____youwatchthem,you'llfindthehorsewiththebellalwayscheckingontheblindone,andthattheblindhorsewilllistenforthebellandthenslowlywalkto____where____theotheroneis,trustinghewillnot_____beled____(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?
Sometimeswearetheblindhorsebeingguidedbythelittleringingbellofouracquaintances;___25____othertimeswearetheguidehorse,whohelpsotherstofindtheirway.
还有25为什么填at,有这搭配吗?