Решение упражнения по грамматике: согласование глаголов

Вот заполненные предложения с правильным выбором слова: 1. The police **are** interested in this case. 2. Mathematics **is** not the most popular subject at school. 3. All their belongings **have** been destroyed during the fire. 4. What will you be doing while the family **is** on holiday? 5. Charlie put on airs to impress his friends, but **it** just made him look ridiculous. 6. A company of musicians **is** going to present a concert at the town hall tonight. 7. The public **are** allowed in from 11 am to 4 pm. 8. The majority of the students **have** voted for you for class president. 9. The military **has**