Вставь am, is или are. запишите нужную форму: 1) you _ clever. 2) their address _ long. 3) these books _ good. 4) the boy _ good at school. 5) his grandfather _ old 6) i _ in class five. 7) you _ nise.

1) You are clever.
2) Their address is long.
3) These books  are good.
4) The boy is good at school.
5) His grandfather is old
6) I  am in class five.
7) You are  nice.