问题
选择题
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
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。