问题描述：
The children often take time to do things like_________.A.volunteer B.t
The children often take time to do things like_________.
A.volunteer B.to volunteer C.volunteers D.volunteering
您好!如何选择?理由?翻译?有人说：C ；也有人说：D .两个都行吗?
The children often take time to do things like_________.
A.volunteer B.to volunteer C.volunteers D.volunteering
您好!如何选择?理由?翻译?有人说：C ；也有人说：D .两个都行吗?
问题解答：
我来补答展开全文阅读