Relier Pairs First ConditionalVersion en ligne Exercise to practice the use of first conditional. par Marco Gabriel Chicaiza 1 If I use the air conditioner less, 2 It will reduce pollution 3 If you use a reusable water bottle, 4 Will it harm the environment 5 I will start using a reusable shopping bag 6 He will damage the environment will I save energy? if you use public transportation. if he doesn't start recycling. you will reduce waste. if I drive to work every day? if it will help the environment.