This wallet is too expensive. Can I see one?

The price of a cup of coffee is higher than _______ of a glass of Cola.

Last month Shirley advised her father to buy her brother ________MP4 as a birthday present. －_______ useful advice it was!

______ does Kitty dance? Four times a week. [ ]

Modern science has given ____clear evidence ____ smoking can lead to many diseases ____ it’s time for us to take measures.