Question

While watching television,________________________.

A．the doorbell rang	B．the doorbell rings
C．we heard the doorbell ring	D．we heard the doorbell rings

Answer

C

【解析】

试题分析：句意，我正在看电视的时候，门铃响了.watching是现在分词的主动式，所以排除A和B，hear sb. do sth. 听见某人做某事, hear sb. doing sth. 听见某人正在做某事。换句话说，hear之后要接动词原形或V-ing形式，故选C.

考点：现在分词的用法和hear的用法。