а) Составьте вопросы, ответами на которые являются следующие
предложения:
1. Yes, they did. (The scientists carried out research in the field
of geology and mining.)
2. No, there were not. (There were only a few higher mining
schools in the country.)
3. No, it did not. (The Academy established close contacts with
the coal and ore mining industries.)
4. Yes, they did. (They took an active part in the development of
heavy industry.)

Ответы

Ответ дал: Бабонька
1
1.Prof. they dug rare stone
2.не поняла перевод
3.I heard that they broke the contract with scientists
4.if they did something to develop in this area
Не знаю, правильно ли 

akiev0695: cпасибо!)
Вас заинтересует