Fruit!

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Across
  1. 3. I can be red, yellow, or green, and I'm very popular
  2. 4. I'm yellow, and sour.
  3. 5. I'm purple or green, and very juicy.
  4. 7. I'm (hopefully) yellow, I'm in the shape of a half moon.
Down
  1. 1. Most people think I'm a vegetable, I start with "t"
  2. 2. I'm red or dark purple, I have a pit inside me, and I start with "c"
  3. 6. I'm usually green, I can be soft or crunchy, I start with "p".