what is the under of the girls in your class?what is the under of the girls in your class?be动词 为什么不用are 而选择is 我转不过来了

问题描述:

what is the under of the girls in your class?
what is the under of the girls in your class?be动词 为什么不用are 而选择is 我转不过来了

在这句话中,句子意思问的并不能确定单复数,英语中对不能确定单复数的时候,句中的be动词一律用单数