1 A: Why(you/be) in such a hurry?
B: I'm worried. My exam(start) in ten minutes

Emma is a good, kind and sincere person. she lives in moscow. her friends are very nice people they are intelligent educated and kind. she likes to sing, dance and help people. if something does not work out for her, then she aspires to this goal and does not stop until she reaches it. but also she has negative habits, she thinks too much about herself, is dependent on popularity, and sometimes she can be bold. i am very i want to become her friend. i would give her advice, with which she would become perfect.

1. Despite the apparent properties of compound semiconductors, their general use *has not been* great because of several limitations. -

Несмотря на очевидные характеристики составных полупроводников, их общие использование не распространено из-за некоторых ограничений.

*has not been* - Pr. Perfect Active

2. The potential difference across the junction *had been increased*.

Увеличена разность потенциалов на переходе.

*had been increased* - Past Perfect Passive

3. Magnetic amplifiers *have been employed* for some 50 years; transistors *were reported* upon in 1948.

Магнитные усилители используются уже около 50 лет; о транзисторах было сообщено в 1948 году.

*have been employed* - Pr. Perfect Passive

*were reported* - Past Simple Passive

4. Sometimes a decision to compute *is followed* by a process of selecting the particular kind of computing machine, which best *suits* for the given problem.

Иногда за решением о вычислении следует процесс выбора конкретного типа вычислительной машины, который лучше всего подходит для данной задачи.

*is followed* - Pr. Simple Passive

*suits* - Pr. Simple Active

5. Our rockets, the first in the world, *were being sent* to other planets.

Наши ракеты, первые в мире, отправлялись на другие планеты.

*were being sent* - Past Continuous Passive

6. This problem *must be approached* from another point of view.

К этой проблеме нужно подойти с другой точки зрения.

*must be approached* - Present Simple Passive

7. This job *cannot be done* for a short period, you *need* at least a month.

Эту работу нельзя делать за короткий срок, нужен минимум месяц.

*cannot be done* - Present Simple Passive

*need* - Pr. Simple Active

8. It *is* 20 years since he *left* home, and he:* has never been heard* of since.

20 лет с тех пор, как он ушел из дома, и с тех пор о нем никто не слышал.

*is* - Pr. Simple Active

*left* - Past Simple Active

*has been heard* - Present Perfect Passive

9. Tell him he *is being waited* for.

Скажите ему, что его ждут.

*is being waited* - Present Continuous Passive

10. L. Carroll *is remembered* not as a mathematician but as the author of Alice in Wonderland

Л. Кэрролла помнят не как математика, а как автора «Алисы в стране чудес».

*is remembered* - Pr. Simple Passive