Раскройте скобки, используя необходимую по смыслу форму глаголов to be и to have: 1. my friend (to be) at home now. 2. we (to have) english classes twice a week. 3. wealth (to be) nothing, happiness (to be) all. 4. she (to be) an economist. 5. a good teacher (to have) some of the gifts of a good actor. 6. nothing (to be) so rare as complete honesty. 7. a triangle (to have) three sides and three angles. 8. education (to be) not just learning facts. 9. everything children study at school (to have) some practical use in their daily life. 10. school (to be) an institution for educating children. 11. this book (to be) interesting. 12. john (to have) a problem.