The teacher said that China and Japan will remain the same, while Britain and France will change (tell me how to change). Add s to everything else?

Chinese and Japanese single and plural homographs. ?

English and French are English and French respectively, and the plural is to change A into E.

Most of the rest are complex numbers with s.

Formula: China and Japan will remain unchanged, Britain and France will change, and the rest will be added after S.

Extended data:

China people-China people; Japanese-Japanese; American American.

British-British; Germans-Germans; French-French.

Italians-Italians; Spanish-Spanish; Australian.

Canadian-Canadian; African-Americans.

There are three types of plural of "some Chinese":?

(1) Chinese, Japanese and Swiss are homographs, and there is no need to add s?

(2) English, French and Dutch plural people want to turn people into people; ; .

(3) People from other countries ending in -an-an and -ian all add S directly, such as Americans, Australians and Indians.