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.

1) He did not start his investigations...
Did he start his investigations...
2)This plant will not produce...
Will this plant produce...
3) The academic year does not consist...
Does the academic year consist...
4) The development of machine tools did not accelerate...
Did the development of machine tools accelerate...
5) A lot of foreign citizens do not enter...
Do a lot of foreign citizens enter...
6)The staff of the laboratory did not finish...
Did the staff of the laboratory finish...
7)They will not conduct the experiment...
Will they conduct the experiment...

P.S сначала отрицательное,а потом вопросительное)