7 Choose the correct answer. 1 I'll tell Tina about the party when I see / will see her next week. 2 She says she calls / will call me as soon as she hears anything, 3 I've decided I am going to do / am doing more to help the environment. 4 I think I'll stop/'m stopping using paper altogether 5 Hurry up! Our flight leaves / will leave in 20 minutes! 6 In 20 years' time, the air pollution in big cities will have doubled / will be double! 7 This time next Saturday, we will be taking part/will take part in a tree planting exercise. 8 Look at that pollution! Things are going to get/ will be getting worse if we don't do anything about it soon. 9 The destruction of the environment might be / might have been stopped if everyone does something to help. 10 What are you doing / will you do tomorrow? Want to meet me at the mall?