They often play basketball after school.为什么用play而不用playing,
问题描述：
They often play basketball after school.为什么用play而不用playing,
解释一下为什么用的是原型而没有加ING呢,
答
often经常的意思.说明他们经常在下课后打篮球,不是一直在打球,所以用一般式,这是一个事实,陈述句.