问题描述: It is known to all that light travels in straight lines. 怎么改成强调句 1个回答 分类:综合 2014-11-23 问题解答: 我来补答 =3= It is...that..已经是强调句啦...是Light travels in straight lines is known to all.的强调句.如果对你有所帮助,还望采纳哈!如还有不懂的,还可以继续追问哦\(^o^)/~ 展开全文阅读