помогите открыть скобки, употребляя нужную форму глагола to be, to have
1.My friend ( to be) at home now.
2.We (to have) English classes twice a week.
3.Wealth (to be) nothind 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 the daily life.
10.School (to be) an institution educating children.
11.This book (to be) interesting.
12. John (to have not) a problem.