your classmate是单数还是复数?为什么?
your classmate是单数还是复数?为什么?
your uncle是单数还是复数
your family是复数还是单数
your counsin是单数还是复数?
A boy and his classmate后面是用单数还是复数,需要就近原则吗?
Everyone 是单数还是复数?为什么?
your parents是单数还是复数,your parent呢?
weight是单数还是复数 例 how much is your weight 还是how much are your
everyone的谓语是单数还是复数?为什么?
The bookstore and the cinema 是单数还是复数?为什么?
family是单数还是复数
school是单数还是复数?