题目内容：

;some are playing football on the playground
A.none of the boys are here B.all the boys are not here
C.Every of the boys is here D.all boy is here
我觉得A,B好像都对,但答案是B,

优质解答

A答案 none of 的用法是 后面用单数形式吧 所以就不对了

追问：

纳尼，原来是我太马虎了

追答：

以后慢慢养成习惯就好了