While she _____ TV, someone _______ at the door.
A.watch, knocked
B.was watching, knocked
C.watching, knocking
D.was watching, is knocking
B
题目分析: 句意:当她在看电视时,有人敲门。knock at 敲门;while当……的时候,引导的时间状语从句动词为延续性动词,进行时态,与主句同时发生,故选B
While she _____ TV, someone _______ at the door.
A.watch, knocked
B.was watching, knocked
C.watching, knocking
D.was watching, is knocking
B
题目分析: 句意:当她在看电视时,有人敲门。knock at 敲门;while当……的时候,引导的时间状语从句动词为延续性动词,进行时态,与主句同时发生,故选B