The fish soup is very tasty. did you buy fish yesterday

Question

The fish soup is very tasty. did you buy fish yesterday

Answer 1

Yes, I did. I buy fish yesterday - Да. Я купил(а) рыбу вчера.
No, I did'nt. I didn't buy fish yesterday - Нет. Я не покупал(а) рыбу вчера.