While watching television .A. the doorbell rangB. we heard the doorbell ringC. there was

问题补充：

While watching television, .

A. the doorbell rang

B. we heard the doorbell ring

C. there was someone knocking at the door

D. we heard the doorbell rung

答案：

A. the doorbell rang

(答案→)B. we heard the doorbell ring

C. there was someone knocking at the door

D. we heard the doorbell rung

解析：本题考查非谓语动词的用法,现在分词作状语,逻辑主语是句子的主语,因此watch的逻辑主语应该是we,其余两个不能发出watch这个动作。B、D选项中的宾语the doorbell与补足语之间没有被动含义，故选B。