Если действительно нужно Past Simple, то вот:
1) began
2) got, switched, brushed
3) took
4) had
5) left
6) took
7) took
8) began
9) had
10) had
Но если ты ошибся(-лась) и нужно было в Present Simple (потому что конструкции большее напоминают это время), то будет так:
1) begins
2) get, switch, brush
3) takes
4) have
5) leave
6) take
7) takes
8) begin
9) have
10) have
1.Builders don't build the houses. What do builders build? 2.Choosing your future profession isn't a difficult choice. What choice is difficult? 3.The student doesn't work on this project. Who works on this project?
<span>My role model is a book character - Robinson Crusoe. He was able to survive on a desert island. He had to be brave and strong. He saved a man and it means that he was kind and compassionate person. </span>He did not give up fighting for his life. All this motivates people not to give up and solve their problems.
1. The greatest difficulty to the practical use of solar power: the scientists will overcome the production of energy when the sun is not shining. Наибольшая трудность при практическом использовании солнечной энергии: ученые преодолеют производство энергии тогда, когда солнце не светит.
will overcome - Future Simple, Active Voice, inf - to overcome
is not shining - Present Continuous, Active Voice, inf - to shine
2. Engineers use the gas turbine in such application as electric power generation. Инженеры используют газовую турбину в таких областях, как производство электроэнергии.
use - Present Simple, Active Voice, inf - to use
3. A decrease in the pressure drop through the turbine adversely affects the turbine efficiency. Снижение перепада давления в турбине отрицательно сказывается на эффективность турбины.
affects - Present Simple, Active Voice, inf - to affect
я не знаю ааааааааааааааааааа
