What kind of job is it?这句里谁是主语?it 是什么成分?求英语达人解释

What kind of job is it?这句里谁是主语?it 是什么成分?求英语达人解释 What kind of job is it?和What kind of job it is?的区别 What kind of programmer is it? what kind of language is it It's a kind of fruit. It's also a kind of color.What is it? 英语疑问?it is kind of you this is a kind of what it is “but it is of a kind that“谁给解释下这是什么结构? it is very kind of you to help me ,it是形式主语吗? 如何回答:What kind of movie is it? What kind of party is it?的意思 在 What is in it 句子中 it做主语 is 系动词 那么what和in 是什么成分呢?请老师指教