Question

【题目】Look! All my classmates ___________ on the playground.

A.are runningB.ranC.were runningD.run

Answer 1

【答案】A

【解析】

句意：看！我所有的同学都在操场上跑步。

考查动词时态。are running正在跑，现在进行时；ran跑，过去时；were running正在跑，过去进行时；run跑，一般现在时；根据句首的Look可知，句子应该用现在进行时，结构是am/ is/ are+doing形式，而句子主语是All my classmates是复数名词，所以这里应该选择are，故选A。