改错题：we should keep in mind the necessity that every person must save the energy resources.
问题描述：
改错题：we should keep in mind the necessity that every person must save the energy resources.
we should keep in mind the necessity that every person must save the energy resources
为什么要把must改成should?
答
must和should都有表示应该的意思,一般来说must是带有命令色彩的词,而should比must委婉点,这句话中,语法是没错的,但是不符合语言习惯,所以用should.
谢谢采纳!