2) I've been studying English for 6 years. 3) I have left my purse in the bus. 4) She hadn't left the country before. 5) My pen has dissapeared. 6) I have read 150 pages so far. 7) Mary finished the composition. 8) I listened to this sound five times today. 9) He hadn't finished his homework yet. 10) We hadn't eaten something so delicious in a long time