6.Shanghai is the first city in the world to build a high-maglev train, from the city to Pudong Airport.

5.We should make more use of this new technology.

4.Fly the kite when a thunderstorm appears to be coming on.

3.Take care that the string does not touch the wall or the door.

2.Tie the corners of the handkerchief to the points of the cross, and you will have a nice strong kite.

1. Animal testing has helped to develop medicines against many diseases.

25.work on

24.make a noise

23.add…to…

22.break the law