Match. Some words can be used more than once. Write sentences with six word combinations. 1. That bou alwaus has

1. That bou alwaus has a optimistic opinion.
2. We live in the age of communications, don't we?
3. In the nearest future all the human resources should be forsed into development of electronic technology.
4. Endangered animals should be saved carefully.
5. In future there will be no serious diseases.
6. In future students will have a new subject in school.

За 1 часть: 999 490‚ 46 000 000, 999 500 000, 400 000 000 000за 2 часть: 50×(6+3)=450(м)ответ: 450 м.другой способ: 50×6+50×3=450(м)ответ: 450 м.

13: 3=4(с остатком ) ответ: 4.5