2-13.Our physics teacher told us that light travelled much faster than sound.back to错了 应该改为 为什么~

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/17 10:34:36

2-13.Our physics teacher told us that light travelled much faster than sound.back to错了 应该改为 为什么~
2-13.Our physics teacher told us that light travelled much faster than sound.
back to错了 应该改为 为什么~

2-13.Our physics teacher told us that light travelled much faster than sound.back to错了 应该改为 为什么~
travelled ---> travels
是事实,所以用一般现在式

大哥 哪有back to 啊