一道英语单选Withthedoor_____on,thethie
Wh the door _____ on ,the thief's heart beat faster. A.knocked B.being knocked C.knocking D.being knocking why choose B ,not A? What's differnce between them? Thank you!
With the door being knocked on强调和句子谓语动词同时发生的动作 With the door knocked on 表示和句子谓语动词同时存在的状态