You will be late if you _____(not be)quick?

问题描述:

You will be late if you _____(not be)quick?
应该填 aren't 还是 don't be ,为什么?
谢谢~~

aren't
因为quick是形容词,所以用be动词就行了
又根据句意:你如果不快的话就会迟到,所以填aren't