I want to improve my learning efficiency(效率) _____ have more spare time for my hobbies.[ ]

Lucy is ________ university student. She likes playing _______ piano.

What should I buy for Tom’s birthday?— How about ______camera? He loves taking photos.

Did you catch the train to Beijing last night?— No. It ______ for ten minutes by the time I got to the station.

The cake my mother bought yesterday smells _______ and tastes _______.