Исправьте ошибку. Напишите предложение целиком. Example There are many retail outlets in our district.
Answer No, there aren't. There are a few retail outlets in our district.
1. Some of the earliest retailers were food sellers.

Some of the earliest retailers were food sellers.

No, they weren't. Some of the earliest retailers were travelling vendors who moved from place to place.

*За точность последнего предложения не ручаюсь, т.к. если это задание по тексту, то нужно видеть этот текст.