Question

【题目】He ____ in the classroom just now. He ____ be there now .

A. heard to sing; may B. was heard sing; must

C. heard sing; must D. was heard to sing; may

Answer 1

【答案】D

【解析】

试题分析：句意：刚才有人听到他在教室里唱歌。他现在一定在那儿。根据句意及题干分析“被听到做某事”是be heard to do sth.；第二空是推测“一定是”，所以用must，故选D。