кто может решить в учебнике happy english (кауфман) Unit 2 Lesson 5 упражнение 1 нигде не могу найти. Учебник 9 класс.

to tell, but it is more than one thousand million people, that is 20 per cent of the world’s population. English is the most widespread language on earth; it is second only to Chinese in the number of people who speak it. The English language is now the native language of about 400 million people, and the official language in over 60 countries. If you add to this the enormous number of people who study English as a foreign language, you will understand that English is a major world language.