句型转换。

1. Tom ran for an hour. (用现在完成进行时改写句子)

    Tom _____ for an hour.

2. I've been dancing since I was five years old. (对划线部分提问)

    _____ _____ _____ you _____ _____ ?

3. China is an old country. It has a long history. (合并为一句)

    China is an old country _____ _____ _____ _____ .

4. They have used up all the money. (改为同义句)

    They have_____ _____ _____ all the money.

5. Lucy has been skating for a long time. (改为一般疑问句并作否定回答)

    _____ Lucy _____ _____  for a long time?

    _____, she _____.