I,

1. How do astronauts sleep in space? (Các phi hành gia ngủ như thế nào ngoài vũ trụ?)

II, 

1. I think that people will watch television programs on smart walls
2. The organizer hopes the students of this project will use few plastic bags in their life.

III,

1 A: Do you think people will take vacations the Moon(might not)

B:People ......might not take vacations the Moon

2 A:Do you think there wil be a robot that could cook all meals for you(might)

B: There............might be a robot that could cook all meals for you

3A: Do u think Hang will be table to find the swimming pool?(might not)

B:She....might not find the swimming pool 

4 A:Do you think the water will be heated by wind energy?(might)

B:... .....The water might be heated by wind energy

5 A:Do u think scientist will find lift on another planet?(might)

B:........Scientist might find lift on another planet

6A: Do u think robots will help us do the homework?(might not)

B:............Robots might not help us do the homework

7 A:Do you think we will travel into space?(might)

B:...........We might travel into space

8 . A: Do u think you will live in houseboat?(might not)

B:......You might not live in houseboat