Выберите нужную форму глагола(am,is,are).1.That_a dog.2tim and don _pilot

1. That is a dog. 2) Tim and Don are pilots. 3) They are best friends. 4) I am a student. 5) He is very clever. 6) They are very friendly. 7) He is a sportsman. 8) We are good friends. 9) Nick and Tom are best friends. 10) My father is a doctor. 11) My sister is a student.