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
答
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