Question

—Where is Tom?
—I heard him ______ with our English teacher when I passed the teacher’s lounge.

A．talks	B．talked
C．talking	D．to talk

Answer 1

C

试题分析：句意：汤姆在哪里？- 当我经过老师的休息室时，我听到他正在和我们的英语老师交谈。hear sb do sth,听到某人做了某事，强调看到的全过程，hear sb doing sth,听到某人正在做某事，强调同时进行，结合所给选项，故选C。