句型转换。
1. Let’s go to school on foot, _______ ________ ？（完成反意疑问句）
2. She spends an hour reading English every day.（改为同义句）
It _______ her an hour to ________ English every day .
3.I learn English by listening to the radio（对划线部分提问）
________ _________ you learn English ?
4. Let’s hurry, or we will be late .（改为复合句）
________we don’t _________ , we will be late .
5. We must plant many trees and flowers in our hometown every year. （改为被动语态）
Many trees and flowers must________ ________ in our hometown every year .