I didn't hear anyone knock at the door at 9:00 yesterday evening改错给我理由,敲门是瞬间的,hear sb do,应该没错啊

问题描述:

I didn't hear anyone knock at the door at 9:00 yesterday evening
改错
给我理由,敲门是瞬间的,hear sb do,应该没错啊

KNOCK 改 KNOCKING

I didn't hear anyone knocking at the door at 9:00 yesterday evening

knock改为:knocking
因为后面是at 9:00具体的时刻,所以这里要用ing形式,表示那个时刻动作正在进行.
翻译:
昨天晚上九点钟的时候,我没有听见有人(正)在敲门.