Light years away. Conditionals.
If we ______(plant) trees, we _____ (reduce) carbon dioxide in the atmosphere.
If we ______(learn) to respect the environment, our planet_____ (be) a better place to live in.
If we _____(recycle) paper, we _____(save) our forests.
If we_____(not, buy) products from endangered species, we _____ (help) them survive.
If we ____ (not, leave) taps running, we_____ (save) water.
If we _____(not, leave) all our lights on, we ______ (not, waste) energy.
If he lived near me,
I could join the volleyball team
If this cake didn't have cherries,
The jet.......in the spacecraft makes it fly very fast.
The recent mission sent a .......into space to improve communication systems.
There are billions of stars in our.....
Someone who studies the start
An icy rock travelling through space with a tail of gas
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