Task 4. Divide the following nouns into two groups: nouns used only in the singular and nouns used only in the plural: news, people, knowledge, goods, air, time, clothes, advice, luggage, mathematics, money, wages, premises, work, economics, information, progress, earnings, paper, scissors, silver, food, scales, riches.​

Plural: news, people, knowledge, goods, advice, money, premises.

Singular: air, time, clothing, luggage, mathematics, wages, work, economics, information, progress, earnings, paper, scissors, silver, food, scales, wealth

Plural:

news, people, goods, clothes, wages, premises, earnings, scissors, scales, riches

Singular:

knowlegde, air, time, advice, luggage, mathematics, money, work, economics, information, progress, paper, silver, food

Объяснение: