We’ll have to race          the clock to complete the work on time.

Miss Li ___ as a secretary for five years in the company, and now she is general manager of it.

A study has proven old people who are ______eaters of fish during their youth lose fewer brain cells. 

Imagine what today’s life would be like if Alexander Bell _____ the telephone more than 130 years ago!

I heard the clock _________eight when I woke up this morning.

_______ by his impressive performance, Peter will probably be accepted by a key university

 His three years of hard work_____ — he did a good job in the 2012 NMET and was admitted into a key university.

Believe it or not, that is _____ people call the sixth sense.

— You seem to be on top of the world.

— Of course. There’s            more exciting than seeing your name in print.

—Could I play computer games for a while, Mum? I’ve finished all my homework.

—Oh, dear, if you _____.