On the playground we saw many boysbasketball.A. playingB. playedC. played theD. stayed

问题补充：

On the playground,we saw many boysbasketball.

A. playing

B. played

C. played the

D. stayed

答案：

(答案→)A. playing

B. played

C. played the

D. stayed

解析：本题的含义是在操场上，我们看到许多男孩在打篮球。在英文中see单词后跟动词作补语时，强调动作通常用doing，强调状态或结果通常用do，本题强调的是当时的动作，故本题选A。