句型转换。
1. The shirt cost me only 50 yuan.(就画线部分提问)
______ ______ ______the shirt cost you?
2. Mr Zhang became an English teacher three yearsago. (改为同义旬)
Mr Zhang ______ ______ an English teacher______three years.
3. Li Ming did his homework at school yesterday.(改为否定句)
Li Ming ______ his homework atschool yesterday.
4. My brother is the tallest boy in his class. (改为同义句)
My brother is______than ______student in his class.
5.We can't live if there is no water.(改为同义句)
We can't live ______.