根据要求进行句型转换。（每空一词）
1. Tea is produced in many different areas in China.（对划线部分提问）
______________is tea___________________ in China?
2. The sun is bigger than the moon. The teacher told us.(合并为一句)
The teacher told us______________the sun_____________bigger than the moon.
3. He speaks so quickly that I can’t understand him.(改为同义句)
He speaks ______________quickly for me ________________understand him.
4. My life has changed a lot in the last three years..(改为一般疑问句)
________________your life_______________a lot in the last three years?
5. Her son used to play the piano..(改为否定句)
Her son _______________ _________________to play the piano.