Сколько граммов мяса должен содержать суточный рацион человека если суточная норма потребления белка составляет 100г а содержаение белка в мясе равно 17%

6. Раскройте скобки, употребляя глаголы в нужном времени.

1.I (not/to see) Mike this week. 2. Не always (drink) milk in the morning. 3. We (to return) home late at night yesterday. 4. John (to cross) the street when hе saw асаг. 5. I think you (to write) the letter bу next Friday. 6. Jill (to do) аll her house work yesterday. 7. What time you usually (to finish) your work? 8. Look! Тhе kite (to fly) high up in the sky. 9. I (not/to enjoy) the party yesterday. 10. Why you (to smile) аt те? Is it something wrong with mе?

-Have you ever thought what will happen in the future? Yes, of course. I think in the future, our technology will grow at a rapid pace. I think that one day people will learn to fly. -Fly? Yes. I believe that people will be able to fly. First, people make a machine that will be able to move freely through the air. And after a while they can fly themselves. Scientists have made a device that can lift people into the air. -It's amazing! But I think that people do not need such invention. It would be better if the scientists have invented a pen that would do for you your homework. -I am afraid I do not agree with you. This is a bad idea. Pupils would be lazy and stupid. -Do you think scientists will invent a perpetual motion machine? -I do not think it will happen. 'But it would be easier for people to live. -It's a good idea, but it is unrealistic. -I think scientists can do it. In a few centuries, scientists invent a perpetual motion machine. And humanity will solve many global problems. -Challenge - is air pollution. Need to invent a device that would catch criminals. Then everyone would be happy. Peace and good. Yes, it is a good idea. Science develops, and I think that soon we will see a big change in our lives.

На ошибки проверить. 

от мотка проволоки длиной 60м отрезали два раза по 9 3/4 м,затем три раза по 10 3/5 м .Сколько метров проволоки осталось в мотке?