假设你是常州星光中学的学生李华。最近你的英国笔友里德在他的来信中谈到了自己对未来生活的设想，请你根据以下信息给里德回信，向他介绍你想在未来完成的一个发明，内容包括：
1. What do you want to invent for the future life?
2. What is it like?
3. Why do you want to invent it?
Dear Reed,
I have read your last letter about our future life. I’m glad to share with you about something I want to invent in the future.
______________________________
Yours,
Li Hua

Dear Reed,
I have read your last letter about our future life. I’m glad to share with you about something I want to invent in the future.
I hope in the future we can travel anywhere we want with just a special bag. It is small and comes in different colours. It’s just like our schoolbag, but it is specially designed as a form of transport.
When we need to go to school or go for a day trip, we just carry it on our shoulders and turn it on. Then we can fly in the air. With the GPS inside, it will lead the way so that we can easily reach where we want to go.
I hope we can travel in an easy and interesting way. The special bag can make it possible, as well as produce less pollution. What do you think?
Yours,
Li Hua