1.Put the nouns in plural where it is possible.Manufacturer, luggage, cargo, man-writer ,physics, branch, goods, delivery, businesswoman, enquiry, information, wages, datum, paper, company, news, family-name, department, factory, knowledge, criterion, economics, progress, people, money.

Manufacturer - manufacturers,

luggage - единственное число,

cargo - cargoes,

man-writer - men-writers,

physics – множественное число,

branch - branches,

goods - множественное число,

delivery - deliveries,

businesswoman - businesswomen,

enquiry - enquiries,

information - единственное число,

wages – множественное число,

datum - data,

paper – papers,

company - companies,

news - единственное число,

family-name - family-names,

department - departments,

factory - factories,

knowledge - единственное число,

criterion - criteria,

economics - множественное число,

progress - единственное число,

people – множественное число,

money - единственное число.