问题描述： as 作介词时,在句子中充当什么成分 1个回答 分类：英语 2014-11-13 问题解答： 我来补答 虚词（介词,连词,冠词,感叹词）在句中不充当任何成分.但是,由介词构成的介词短语在句子中可充当补语或状语如 I see him as my best friend. (补语) I sent him a toy as his birthday prsent. (状语) 再问： 3qu,I sent him a toy as his birthday prsent中，as his birthday prsent 是目的状语吗 再答： 完全正确 望点击采纳 展开全文阅读
