问多远的英语

How far is it from A to B?

英语中问距离该怎么问？1.How far is it from your home to the school?你家到学校又多远？2.How far is it from your home?它到你家有多远？上面两句话语法是否有误？问距离，固定句式“how far is it+……”吗？上两句话包含了哪些重要的、相关的语法点？谁能帮忙解释下？问多远句子开头是固定how far还是固定how far is it?

How far?

how long.....