Question

Поставить в Pr cont, Past cont,Future Ind, Future cont, Past Ind
1.This is the electronie unit at the computer system

Answer 1

This is being the electronic unit at the computer system.  This was being the electronic unit at the computer system.  This will be the electronic unit at the computer system. This will be being the electronic unit at the computer system. This was the electronic unit at the computer system.