按要求变换句型。
1. I saw the film 2046 just now. (用just做状语)
I_____ just _____ the film 2046.
2. I've read this book. (改为一般疑问句)
_____ _____ read this book?
3. She's already done her homework. (改为否定句)
She_____ _____ her homework _____.
4. I've known him since he came him. (对划线部分提问)
_____ _____ _____ you known him?
5. Has Danny come? (作否定回答)
_____, he _____.