Rachel: to stay young
Correct: To stay young, you have to:
Explanation: The phrase, "You have to:" indicates that you are going to say tips, so it's better to use this expression.

Rachel: 1. eat lots of vegatables
Correct: 1. eat lots of vegetables
Explanation: The spelling of vegetable is incorrect. Be careful. :)

2. exercise every day.
3. keep standing up.

-These are correct, just omit the period (.) because they are not sentences. They are phrases.

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Thank you for doing your homework, Rachel! You're getting better. Keep it up!

-Teacher Shane