问题描述: she put her finger to her lips as a____ to be quiet.根据单词首字母写单词 1个回答 分类:英语 2014-09-26 问题解答: 我来补答 sign.She puts her finger to her lips as a sign to be quiet.她把手指放到嘴唇前,以示安静. 展开全文阅读