Задать общий вопрос по английскому к предложениям :
1. Customers can buy all necessary foodstuffs in supermarkets
2. There is a laser scanner that reads and sums up the pricer on packed goods at the cashier's desk

Can customers buy all necessary foodstuffs in supermarket?Is there a laser scanner that reads and sums up the prices on packed goods at the cashier's desk?