________ the help of the dog, people lost in snow found their way home.

The            World Table Tennis Championship began            the morning of May 25, 2010            Moscow, Russia.

Li Na won the tennis match in France_______ June 4th, 2011.

The teaching building has five floors. My classroom is ______________ the third floor.

It’s humorous_______ you to tell funny jokes to those_______ teenagers.

Mr. Li is not here, and you’d better call him ____3 p.m. ____ 5 p.m. tomorrow.

Audrey Hepburn was a ballet dancer ____ a very young age. In her twenties she became a famous film star.

To improve his English，he spends _______one hour a day listening to English programmes.

Computers have made a great difference _______ our everyday life.

--- Have you got the e-mail I sent you this morning?
--- I found an e-mail in my mailbox, but it wasn’t ______ you.