根据答语写出问句。
1.---________________________________________________
--- It's a book.
2. --- ________________________________________________
--- I'm fine, thanks.
3. --- ________________________________________________
--- They're arms.
4. --- ________________________________________________
--- Yes, it's my ball.
5. --- ________________________________________________
--- No, an eye.
1. What's this ? 2. How are you ? 3. What are these ?
4. Is this a ball ? 5. Is this a ear ?
(答案不唯一)