The students often games after class. They volleyball over there now.A. play are playing

问题补充：

The students often games after class. They volleyball over there now.

A. play, are playing

B. are playing, play

C. play, play

D. are playing, are playing

答案：

(答案→)A. play, are playing

B. are playing, play

C. play, play

D. are playing, are playing

解析：考察时态。前文根据频度副词often可知为一般现在时态，主语students为复数，故谓语动词用原形。下文根据时间状语now可知为现在进行时态，主语they为复数形式，故助动词be用are，选A。