Умовні речення 1-го типу. Unit 3. Lesson 2 Nature and the environment. (Conditional I). Use the 1st Conditional putting the verbs in brackets in the correct forms.

1.    If we ______(plant) trees, we _____ (reduce) carbon dioxide in the atmosphere.

1.    If we ______(learn) to respect the environment, our planet_____ (be) a better place to live in.

1.    If we _____(recycle) paper, we _____(save) our forests.

1.    If we_____(not, buy) products from endangered species, we _____ (help) them survive.

1.    If we ____ (not, leave) taps running, we_____ (save) water.

1.    If we _____(not, leave) all our lights on, we ______ (not, waste) energy.