А. Yes, she plays it really well. She is learning a new song at the moment.
c. Yes, I am. I am doing my maths. It's really difficult.
d. No, he's out with his friends. They are watching a film at Tom's house.
e. Yes, I do, and I often play on Saturdays as well.
f. I am cooking pasta. I usually make tomato sauce to go with it but today I am making mushroom sauce.