Who are they They are teachers.(改错

问题描述:

Who are they They are teachers.(改错

可以把who改为what

what do they do? what are they?
They are teachers.

Who are they?是问他们是谁?而回答是:他们是老师,是对职业的回答,因此问题错了,应问他们是做什么工作的?用英语说是:What do they do 或What are they?