Read and match.
1 If they had listened to the teacher,2 If you had got up earlier,3 They wouldn't have got lost4 If I hadn't forgotten my mobile phone, U5 I would have bought you a present6 If you hadn't forgotten your jacket,a you wouldn't have been cold.b if I had known it was your birthday.C I would have called you.d they would have understood the lesson.e you wouldn't have arrived late.f if they had taken a map.