В 1) ошибка is, во 2) ошибка is , в 4) ошибка is , в 6) ошибка is, в 8) тоже is . шестую не знаю
1) These pictures are old .
2) Sheep are not wild animals .
3) They are domestic animals .
4) That man are a doctor.
5)He is not a teacher.
6) The children are in the yard .
7) They are not in the street.
8) These books are not new .