It is not so difficult to learn English well. ________ you need is listening, speaking, reading and writing it every day.

Our city has changed a lot; who can tell what it will be like in _____ten years?  

 I have never heard a worse voice than hers. She is ________ but a good singer. 

---How much should I pay for the food, Sir? --- It costs_______. The food is free on our ship. _______ needs to pay for it.

It is one thing to enjoy listening to good music, but it is quite ______ to perform skillfully yourself.