ДАМ 20 баллов, АНГЛИЙСКИЙ, ПОМОГИТЕ

4.B:Well,if you had studied harder,you wouldn't have failed 5.B:If I were you,I would go to the dentist. 6.B:If I hadn't left the door open,the puppy wouldn't have escaped. 7.B:If I had not been late,we wouldn't have missed the bus. 8.B:Where would you go,if you could travel anywhere in the world? 9.B:If I were you,I would go to America. 9.B:Well,if I were you,I would report it to the police. 10.B: Well,if you had been careful,you wouldn't have cut yourself.