Определите, какую грамматическую функцию исполняют окончания s (-es). 1. When they

Обусловьте, какую грамматическую функцию выполняют окончания s (-es). 1. When they watch television commercials, they discover that there are thousands of things they or their parents could buy.2. In the role of consumer, a person buys goods and services for personal use, not for resale.3. Consumer goods are products, such as food, clothing, and cars, that satisfy people39;s economic needs or wants.4. A producer makes the goods or provides the services that consumers use.5. A person who makes lemonade and then sells it is producing goods.