Gap Fill - Level 0


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Scientists want to get to Mars. Getting to Mars will take -and-a-half . Scientists are trying to find out can grow on Mars. Astronauts will grow their food on the Red Planet from . This may be because Mars doesn't have good . It has dust.

Humans could be on Mars by . NASA has tested "Martian ". They used dust. This is to Mars . The scientists grew in it. The lettuce tasted , but it had weaker and it took longer to grow. NASA said testing 'Martian gardens' on would help to grow food on Mars in the .

Try the Level 1 gap fill.

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