Question

Выберите нужную форму вспомогательного 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.

Answer 1

а)1. was,2. is, 3.were.
b)2 предложение