Question

—IsTomin the next room?
—Well,it’s hard tosay.ButIheardhim               loudly whenIpassed by justnow.

A．speak

B．tospeak

C．spoken

D．speaking

Answer 1

D

考查非谓语动词的用法。hear sb do sth“听到某人做某事”，所听到的某人所做动作一般是完整的，或者是瞬间动词；根据后面的“whenIpassed by just now” 可知，所听到的动作当时正在进行，应该使用hear sb. doing sth“听到某人正在做某事”。