Поставьте предложения в отрицательную и вопросительную форму:
1.He started his investigations of the properties of a new compound.
2/This plant will produce a new type of equipment.
3.The academic year consists of two terms.
4.The development of machine-tools accelerated the industrial revolution.
5 A lot of foreign citizens enter our University every year.
6.The stuff of the laboratory finished the work on the apparatus.
7.they will conduct the experiment in the best laboratory.