What does your mother do?She's a teacher.为什么选does?

问题描述:

What does your mother do?She's a teacher.为什么选does?

what do you do 这句话很熟悉吧
what does your mother do?
这两句话的主要区别就是主语不同:you 和 your mother
这里what 后面的do 和 does都是助动词
用do 还是用does 取决于主语
主语是第一人称,第二人称或者是复数时,用do
主语是单数,或者是第三人称单数时用does