I think it is at home.这个句子是怎么组成的?

I think it is at home.这个句子是怎么组成的? 这个句子对吗?I think that it is important to do your home works. He is at home now,maybe.这个句子中at home now是状语吗 英语翻译When it is raining,I did some reading at home.书上翻译的是,Whe 请看下面的句子：Who is knocking at the door?I think (it) is Li Lei.为 组成句子：mine,at,I,your,could,dictionary,is,piease,home,borrow mine,at,I,your,could,dictionary,is,please,home,borrow.组成一个句子 I think she is at home 变否定句 I think it is at home.不是说英语中不能出现实义动词与be动词一起的吗? My father is the tallest at home.这个句子的at可以改成in吗 为什么? I am I forget__my homework.It is at home. 几道英语问题.1.I think he is at home.(改为否定句）是I think he isn't at h