英语高手进啊330There is a knock at the door,but it's already 10.p.

there is a knock at the door.it is the second time that some 可以说there is a knock at the door吗 —There is a knock at the door.—---------------?A.who is that There was a knock at the door.It was the second time someone Listen!There's someone_____(knock)at the door. listen there is a knock at the door 改为同义句 21页7.Listen ,there is a knock ------the door .It must be Tom Listen!there`s a k______ at the door .who is it ' knock at the door there was a knock on the door. There came a knock on the door 选择正确的动词填空1.Is there anyone at home? at the back door.(Knock/