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A lot of the food astronauts eat
is freeze-dried.
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NASA food scientists, ( who / which ) make the menus for astronauts, are always trying to make astronaut’s space food better.
who
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Freeze-dried food is much ( lighter / lightest ) than normal food.
lighter
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A refrigerator would be ( heavy enough / too heavy ) for a spacecraft.
too heavy
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Eating on Earth is very different from ( to eat / eating ) in space.
eating
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It’s important that space food
keeps astronauts happy as well as healthy
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It’s important NASA astronauts get
a balanced-diet.
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Space food needs to be
easy to hold and eat in zero gravity.
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You can’t enjoy a Thanksgiving meal without turkey and green bean casserole, ( can / can’t ) you?
can
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