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- I was wakened by a knock at the door. 敲门声把我吵醒了。
- There comes a knock at the door. 传来了敲门声。
- There seems to be a knock at the door. 似乎有人在敲门。
- Just at that moment there was a knock at the door. 就在那时,有人敲门。
- Miguel: Quiet,Pedro.I heard a knock at the door. 米盖尔:佩德罗你安静点;我听见有人敲门.
- Freda：Wasn't that a knock at the door? 弗里达：是不是有人敲门？
- They were interrupted by a knock at the door. 他们被敲门声打断了。
- Late that evening, there was a knock at the door. 那天深夜，有人敲过门。
- We all heard a knock at the door. 我们都听到敲门声了。
- It sounds as though there is a knock at the door. 听起来好像有人在敲门。
- A knock at the door interrupted his concentration. 敲门声打断了他的专心思考。
- On cue, there was a knock at the door. 正在这个时候，有人敲门。
- There came a knocking at the door. 传来一声敲门声。
- I was preparing for bed when I heard a knock at the door. 我正准备睡觉时听到有人敲门。
- I was playing a computer game when there was a knock at the door. 我在玩电脑游戏,这时有人敲门。
- There was a knock at the door and a sentry put his head in. 门上响了一声，一个哨兵把头伸了进来。
- The dog's ears perked up when hearing a knock at the door. 狗听见有人在敲门，竖起了耳朵。
- We were preparing for bed. when we heard a knock at the door. 我们正准备睡觉时听到有人破门。
- There was a furious knock at the door. 有人在猛烈地敲门。
- Just then(= at that moment)there was a knock at the door. 就在那时有人敲门了。
