Answer:
- Tu manges au restaurant? 
Oui, j'y mange souvent. 
- Tu manges des tomates? 
Oui, je la mange.
- Tu manges la pizza? Oui, je la mange.
Oui, j'en mange beaucoup. 
Step-by-step explanation:
Translating makes it easier to understand...
the question are,
Do you eat at the restaurant? 
Do you eat tomatoes? 
Do you eat the pizza?
the answers choices are,
Yes, I eat there often
Yes, I eat a lot.
Yes, I eat it.
so matching the question with answers so it make sense...
Do you eat at the restaurant? 
Yes, I eat there often.
Do you eat tomatoes? 
Yes, I eat it.
Do you eat the pizza?
Yes, I eat a lot.