the coffee is very hot.______(be) careful with it.为什么应该填‘be’而不是‘being’?

问题描述:

the coffee is very hot.______(be) careful with it.
为什么应该填‘be’而不是‘being’?

祈使句开头用动词原形

Be+形容词搭配,以及小心的固定搭配都是Be careful.
being表示已经开始,但是未完的状态