问题描述: 3.They often begin their class ________ a song. A in B for C by Dwith 1个回答 分类:英语 2014-11-17 问题解答: 我来补答 选D with begin with...以.开始They often begin their class with a song.翻译:他们经常上课前唱歌. 展开全文阅读