3 A: How often you (eat) out? B: Once a week. I (meet) my friends and we (go) to Tony's.

1. The question asks to fill in the blanks to form a coherent dialogue.
2. For A, the question is about frequency, so 'do you eat' fits. For B, the response describes an action, so 'meet' and 'go' are appropriate verb forms.
3. The completed dialogue is: A: How often do you eat out? B: Once a week. I meet my friends and we go to Tony's.