当别人犯错误时,嘲笑他们是不礼貌的.
This is a place where children can play without (危险).
I like reading because it can (增长)our knowledge.
Skating seems to be Mary's only (爱好)in her life.
I'm (自豪的) to say that we have made the right decision.
My aunt has gone (某处)out of town to buy some flowers.