1) I have never heard that song before.2) She hasn't taken another test yet.3) Mark has never done this before.4) Where is your mobile? — I've lost it.5) She has been worrying about this for two months.6) My sister has been studying the knit manual for hours.7) Nikolas has failed his test because he doesn't know the dates.8) I think he has made a lot of improvement.9) Alice hasn't passed her driving test because she doesn’t know the rules well.10) She has been studying the driver’s manual for hours every day.11) She hasn't taken another test yet.12) I have had a headache since I got up.13) He is my friend, I have known him for ages.14) She has a headacke. She has eaten a lot of medicine.15) I think he has made a lot of mistakes.