—Mr.Smith,you are wanted on the phone.
—Thank you. _________no one knows I’m here.

— I’d like to invite you to our party this weekend.
— Thank you, but _________I’ll have time I’m not sure at the moment.

The actress doesn’t care about the profits _______ she plays her favourite roles.

The 2010 Expo will take place in Shanghai, ________ many countries consider a good chance to introduce their cultures to the world.

Where was it ______ the road accident happened yesterday?

I have many friends, _______ some are businessmen.

The English play ______ many students acted at the New year’s party was a great success.

Women ______ drink more than two cups of coffee a day have a greater chance of having heart disease than those _______ don’t.

_____ ashes from the volcano in Iceland have caused problems for air traffic and business, scientists don't think it will have long-term effects on human health.

_____relieved the people most was that it wasn’t long _____the victims in the earthquake were saved by the soldiers.