Question

【题目】Seeing their teacher _______ into the classroom, they stopped _______ at once.

A．walk; telling B．entering; to speak

C．enter; to tell D．walking; talking

Answer 1

【答案】D

【解析】

试题分析：句意:看到老师走进教室,他们立刻停止了谈话。see sb doing sth：看见某人正在做某事；see sb do sth:看见某人做过某事。stop doing sth ：停止正在做某事；stop to do sth:停下来去做另一件事情。故选D