问题描述： be动词的being应该在什么情况下用?如题 be东西这个一直不太清楚 1个回答 分类：英语 2014-10-12 问题解答： 我来补答 when the 'am','are'or 'is' are somewhere elso in the sentenceeg.you are nice to her => are you being nice to her? 展开全文阅读
