3. Воткните заместо пропусков глагол to be или to have в

3. Воткните вместо пропусков глагол to be либо to have в подходящей форме:
1.She a schoolgirl last year.
2. I many interesting text-books in the English language.
3. We Russian students.
4. Chemistry a difficult subject.
5. Our town many secondary and higher schools.
6. He a laboratory worker at a chemical plant before entering the institute.