borrow、front door、back door、fire是什么意思?

borrow、front door、back door、fire是什么意思? at the front door和at front door的区别 shut the front door 什么意思 sit at the front door 的意思? The sign on the front door(　　):Push She is in front of the door.(特殊划线部分是in front of the door) Does Jill take the key to front door? front in my the of book door is.连成句 I tried knocking at the front door but nobody ___it in front of the door ____(stand) a child His wife had the front door painted green yesterday, Is there a chair in front of fhe door? blocking the front door with its trunk翻译 She is in front of the door.(变特殊疑问句)(划线部分是in front of the door) key of the front door还是key to the front door?前门的钥匙 用to还是of? go out the front door,go out of the front door哪个正确,为什么,什么情况加of go out the front door,go out of the front door哪个正确,为什么,什么情况加of andy puts his chair in front of the door 对in front of the door提问------ ------- andy ------his chair