Question

【题目】The boys who ________ on the playground are my classmates.

A. is playing football B. are playing football

C. was playing football D. were playing football

Answer 1

【答案】B

【解析】句意“正在操场上打篮球的男孩们是我的同学”。根据主句中的are可知用一般现在时，且从句的谓语动词要和先行词保持一致，故选B。