5. Who ______(make) the first boat?

4. Are you coming with ____(we) tomorrow?

3. We are _____(China).

2. I'd like _____(take) a train.

1. You can ____(walk) to _____(buy) donuts.

5. It takes eleven hours to fly from Canada to China.(对划线部分提问)

______ ______ ______it ______to fly from Canada to China ?

4. I don't know what I should present.(简单句)

　　 I don't know what _____ _____.

3. We had to think of an invention. (改为否定句)

We_____ to think of an invention.

2. I would like to present my invention. (改为一般疑问句)

_____you______ to present your invention?

1. People built factories in Germany and France in the 1980s. (改为被动语态)

Factories_______ in Germany and France in the 1980_______.