1.is
2.are
3.am
4.is
5.is
6.eats
7.is
8.are
9.do
10.is
My friends are brave
my brother is seven
am
is
is
am
are
is
is
are
are
are
1) I; 2) They; 3) You/they; 4) He/she; 5) They; 6) It; 7) They; 8) It; 9) They; 10) Are (в 10-ом, скорее всего, есть ошибка, т. к. вставить нужно местоимение, а не глагол to be. Но глагола как раз и не хватает)
1) My mother's new car is very expensive.
2)Our manager's nice office is on the four floor.
3)Their two daughters' names Monica and Pat.