—Is Tom in the next room?
—Well, it’s hard to say. But I heard him loudly when I passed by just now.
- A.speak
- B.to speak
- C.spoken
- D.speaking
答案
正确答案:D
知识点:实义动词用法

hear sb. doing sth.“听到某人正在做某事”;hear sb.do sth.“听到某人做某事”强调做的整个过程。根据句意“……刚才我经过的时候,听见他正在大声说话”可知,正确答案为D。

略
