Всмысле 1 и 2 задание? тут как бы их много...
Не спец в английском. Я бы так выполнил это задание.
1) T<span>he first metro line had been constructed (by workers) by May 1935
2) T</span>wo districts were connected with t<span>he first line
3) T</span>he construction work was done (by Moscow metro builders) <span>in difficult geological conditions
4) The work was </span>continued <span>During the Great Patriotic War
5) </span>18 districts of the capital are linked with t<span>he belt line
6) Trains are conducted with a</span>n automatic driver <span>according to the schedule
7) T</span>he streets of the city are decorated with flags, portraits, flowers and garlands of coloured bulbs b<span>efore holidays
8) </span>An automatic driver was successfully tested
(В последнем предложении не буквальный переход, а по смыслу. "has undergone" - само по себе с пассивным значением, хотя формально это активный залог. Это ощущается и в русском языке: автопилот(автомашинист) подвергся успешно испытаниям (прошел успешно испытания). Поэтому формальное обращение будет выглядеть странно: Successful tests have been undergone with an automatic driver)
Have , done , wrote , have performed , started , will show
1. Somebody has cleaned the room.
The room has been cleaned.
2. They have postponed the concert.
The concert have been postponed.
3. Somebody had repaired the computer by the moment they came.
The computer had been repaired by the moment they came.
4. I didn't realise that somebody had recorded our conversation.
I didn't realise that our conversation had been recorded.
5. When we got to the stadium, we found that they had cancelled the game. When we got to the stadium, we found that the game had been cancelled.