Have you been a tourist before?(여행 가본적 있니?) Please write your homework in English.

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I'll just eat vegetables. I'm on a diet. -- > I just eat vegetables. I'm on a diet.

I can't believe it. As far as I know, you're a meat eater. -->  I can't believe it. I know you are a meat-eater. 

And you like chicken and pork very much. -->  And you preferred chicken and pork. 

=> Your sentence has a correct grammatical structure, but this has the correct usage/ expression.