Употребите глагол to be в нужной форме (am, is, are, was, were, will/shall be) . 1. in five years they certified specialists. 2. my friend a network manager in a large company some years ago, now he is a lecturer at a financial college. 3. last year we very busy preparing for tests and exams. 4. there many helpful office application programs today. 5. computer one of the most wonderful inventions of mankind.
1. Will be
2. Was
3. Were
4. Are
5. Is