时间状语从句和条件状语从句区别
问题描述：
时间状语从句和条件状语从句区别
Americans feel they are not using their time well _____ they are not productive during most of the day.此处标答为if,但为何不能填when来引导时间状语从句?(本人知道填if此处是引导条件状语从句.)
答
在这里的话if.when 都能引导条件状语从句的,但是if比较普遍,所以可能题目出得混淆了,不过这我们也么得办法,哈哈,按照书上就好啦.