1.21 What can the arts tell us that science cannot?

2.18 Some people believe that air travel should be restricted because it causes serious pollution and uses up the world"s resources. Agree or Disagree?

3.25 Long distance flights use more fuel than cars and may bring the pollution to the environment, so some people think use the cars and limit the use of plane, what extent do you agree or disagree?

4.8 In the last century, the first man to walk on the moon said: “It was a great step for mankind.” But in fact people think it has made little difference on most people"s lives today. To what extent do you agree or disagree?

7.29 Earlier technological development brought to ； more benefits and changed the life of ordinary people than the recent technological developments ever will. to what extent, do you agree or disagree.

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9.2 There are many advertisements directed at children, such as snacks, toys and other goods. Parents argue that children are under pressure. Advertisers claim that the advertisements provide useful information.