句型转换。
1. Will there be less pollution in the world? (改为肯定句)
____ ____ ____ less pollution in the world.
2. There will be only one country. (改为否定句)
____ ____ ____ ____ one country.
3. We often do some exercise in the morning. (改为否定句)
____ ____ ____ ____ exercise in the morning.
4. I think my sister will be an English teacher in five years. (对画线部分提问)
____ ____ you think your sister ____ ____ in five years?
5. His mother often goes to school by bike. (改为同义句)
His mother often ____ to____.
