句型转换。
1. He was born 21 years ago. (对画线部分进行提问)
_____ _____ _____ _____?
2. Li Ping hiccupped for 3 days. (对画线部分进行提问)
_____ _____ _____ she_____?
3. I went to school when I was six years old. (改为简单句)
I went to school _____ _____ _____ _____ six.
4. She is very excited. She can't say a word.(合为一句)
She is _____ _____ _____ _____ a word.
5. How far is Beijing from Shanghai? (改为同义句)
How far _____ _____ _____ _____ to Beijing?
