用合适的词填空 求回答.
问题描述：
用合适的词填空 求回答.
He does well _____ skating and he often helps the children____ skating,too.
It is careless ___ you____make such a mistake.
He sits ______ the chair _____ a smile _____ his face.
It is very hot here.Please take _____ your coat.
答
He does well 【in】skating and he often helps the children 【with】 skating,too.
It is careless 【of】 you 【to】make such a mistake.
He sits 【on】 the chair 【with】 a smile 【on】 his face.
It is very hot here.Please take 【off】 your coat.People will do many things ____the Internet【on】the Internet 在网上