Loik,write and read. are trainers? trey draw well. are ?

1) To use atomic energy for peaceful purposes is the task of our scientists. (использовать; to use - использовать)

2) Having entered the institute he began his scientific work in the students' scientific society. (поступив, после того как он поступил; to enter - поступать)

3)
1. Вещества, которые оказывают сопротивление току, называются изоляторами. 1. Substances to resist the flow of current are called insulators.
2. Переводить древнюю рукопись оказалось очень трудной задачей. 2. To translate the ancient manuscript was a very difficult task.

4)
1. Obtaining this information is hardly possible. -  b. получение
2. Their task was to obtain information.  -  c. получить
3. The mass media enlarged on the event obtaining new information every day. - d. получая
4. The information being obtained by us was very urgent. - a. получаемая

5) To work with mercury is dangerous. (work - simple active)

6) Having finished the experiment they left the laboratory.

7) Physics is a science dealing with phenomena connected with the transformation of matter and energy.

8) The proton {having} a positive charge is one of the important particles.
The method { proposed} by this young researcher was not acceptable.

9) Having done the work the engineer wrote down some new conclusions. Выполнив работу, инженер записал несколько новых выводов.

10) This method of examining a machine tool is connected with a new technology. Этот метод проверки работы станка связан с новой технологией

1) Can I see John? - No, you can’t. He has left for Moscow. When did he leave? Two days ago.

2) Have you already done this exercise? - No, I haven’t. I have translated 10 sentences only.

3) Have you passed all the exams? - No, we haven’t. We have passed only two of them. How many exams did you pass last year? - Five.

4) Why is Ann so sad? She has quarreled with Nick. Oh, goodness, how many times have they quarreled this month? - I think many times.

5) How have you spent your winter holidays? - Fine. On the 31st of December we had a New Year party. We danced, watched TV, then we went for a walk in the evening. On the 2nd of January we went to the country.

Объяснение: