While heTV a football flew into the room through the windowA. watchesB. is watchingC. was

问题补充：

While heTV，a football flew into the room through the window．

A. watches

B. is watching

C. was watching

D. Watched

答案：

A. watches

B. is watching

(答案→)C. was watching

D. Watched

解析：本题考查时态。while引导的时间状语，表示“当……时候”，故用过去进行时。句意：当他看电视的时候，一只足球穿过窗户进入房间。