Jack：Listen!There is someone knocking at the door.Who can it

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/29 02:11:38

Jack：Listen!There is someone knocking at the door.Who can it be?
Bob:Let me have a look.(之后把们打开后.）Oh!() is Mary,Jack
A it B she
这利用什么?这应该算知道性别了的吧?.
Knock on 和Knock at 都有敲门的意思有什么区别呢?

1.还是用It.
口语的固定用法,楼主不要死套语法规定.
2.knock on和knock at表示“敲门/窗”时没有区别.
但是请注意knock的词性:
1）动词：sb be koncking at/on...
2）名词：there is a knock at/on...

--Listen! Someone is knocking at the door. Who _____it be? ---Listen! Someone is knocking at the door. Who _____it be? --Listen! Someone is knocking at the door. someone is knocking at the door.who [ ]it be? ---someone is knocking at the door.Who _____ it be? Listen!Who is knocking at the door? 6.There is someone knocking at the door,who _____ it be? Someone is knocking at the door.Who can it be?的回答.A.Nothing Someone is knocking at the door.Who it be?— It be Tom.He is someone is knocking at the door,who is it? A this is a polic Someone is knocking at the door,but who can____ be? someone is knocking at the door （）i go and see who it is A s