You need a lot of ______ if you want to become a good nurse.

There are two       and five       in the zoo.

-Tom, do you know David Smith?-Sure. He is my best friend and our __________ has lasted for years.

—There are so many ______ over there. What’s happening?—Let’s go to have a look.

— When will the London 2012 Olympic Games start?— It will start on July 27th. You can visit London this ________.