Нужно вставить слова из скобок (Am ,  am not  , is ,  isn't  , are  ,  are't) в предложения 
1) my brother ... a purple but i ... am purple.
2) Pam ... from Canada, she ... from America. 
3) I ... 8 and my friends ... 9.
4) The children ... at school? they ... at home.