Question

【题目】What will you do if the people ______ at the back of the hall have trouble hearing the speech?

A. sitting B. sit

C. sat D. to sit

Answer 1

【答案】A

【解析】考查非谓语动词。句意：如果坐在大厅后排的人们听不清演讲你该怎么办？根据题干中谓语动词have trouble doing判断出前面填非谓语结构，“人们”和“坐”是主动关系，故选A。