Mary's best friend likes to do the same things as she ___.选项:1)is 2)do 3)does 4)as如果是3,那为啥不选4)了?

问题描述:

Mary's best friend likes to do the same things as she ___.
选项:1)is 2)do 3)does 4)as
如果是3,那为啥不选4)了?