Выберите нужную форму глагола. a]1.this plant reconstructed only 5 years ago. [ will be, is, does, was] 2. our country produce many more automobiles in 10 years. [ does, is, will, shall] 3. these new problems not much worked at now/ [ will be, are, do, were] b] укажите предложение, в котором глагол to be выражает долженствование 1. these experiments are of great impjrtance. 2 these experiments are to help us in our work. 3. the students are conducting an experiment now.