Can you see the boys football on the playground? They are my classmates.
A. to play
B. playing
C. plays
D. played
网友回答
A. to play
(答案→)B. playing
C. plays
D. played
解析：see的用过有两个：see sb. do sth.“看到某人做过某事”；see sb. doing sth.“看到某人正在做某事”。本句的意思是“你看到一些男孩在踢足球吗？他们是我的同学”根据题干，说明孩子们正在踢足球，故用playing。所以本题选B。