Peter is busy,____ he always helps others= Although Peter is busy,he always helps others

问题描述:

Peter is busy,____ he always helps others
= Although Peter is busy,he always helps others

填but,Peter is busy,but he always helps others.或者however,Peter is busy,however,he always helps others.一定要加逗号Although Peter is busy,he always helps others这样也可以,但是Although Peter is busy,b...