句型转换，对划线部分提问。
1. He knows a little about Chinese.
_____ _____ does he know about Chinese?
2. Jack's mother gives him ten dollars every day.
_____ _____ money does Jack's mother give him every day?
3. There are two cups of tea on the table.
_____ _____ cups of tea are there on the table?
4. There is an apple in the picture.
_____ _____ in the picture?
5. There are two apple in the picture.
_____ _____ apples are there in the picture?
