I can’t find my pen. Could you help ______ find it?

--There is still a copy of the book in the library. Will you go and borrow _____? --I’d rather buy _____ in the book store.

When __________ comes to golf, I know nothing and I have no interest in this match.

(2013·陕西咸阳二模)Listening to music can be very enjoyable, but ________ can be appreciated unless you like it.

--What can I do for you?--I am looking for a birthday gift for my sister, _______at a proper price but fashionable.