Дайте краткий отрицательный ответ на вопрос: "has he translated this text? "

Yes, he has
(Или отрицание) No, he hasn't

Britain is a small, beautiful and crowded country. England, Wales & Scotland occupy the territory of Great Britain. The population is more than 57 million. The capital of the country is London. Great Britain is washed by the North Sea, the Irish Sea & the Atlantic Ocean.The northern & western parts of the country is mountainous & is called Highlands.The most important rivers are the Severn, the Thames, the Trent.The longest river is the Severn - about 200 miles.
The climate of the country is mild the whole year round. Great Britain is a country with old cultural traditions & customs.The most famous educational centres are Oxford & Cambrige universities.They are considered to be the intellectual centers of Europe.The educational is not free, it is very expensive. There are many sightseeing in Great Britain witch attract tourists from different contries of the world.

1. The professor of our Institute made the report concerning the latest
achievements in economics.
Профессор нашего института создал доклад о последних достижениях в области экономики.
2. The new equipment having been installed, the plant could raise its
output.
Новое оборудование было установлено, завод может увеличить выходные.
3. The city authorities started to build new highways, many existing
streets and roads having been reconstructed.
Городские власти начали строить новые магистрали,многие улицы и дороги были реконструированы.