问题描述：
He has never been toany city in China.=He's been to _ _ _ _ in China.
Many people send donationsto charities to support their work.
=Many people support the_ work _ _ donations to them.
Many people send donationsto charities to support their work.
=Many people support the_ work _ _ donations to them.
问题解答：
我来补答展开全文阅读