________in the heart of Toronto is the Canadian National Tower , which is often called the CN Tower for short.

Hardly __________ the Shanghai Expo _________ we realized we forgot our ID cards in the room.

So although Fleming discovered penicillin, it was over a decade ___________someone else turned penicillin into the great drug of the 20th century.

—Do you think it’s going to rain over the weekend?

—______. We’re planning to go on a picnic.

I will lose _________ before an examination because of much worry.

-----Do you have a minute? I’ve got something to tell you.

-----OK, _________you make it short. You see the match between Argentina and Korea is on and I won’t miss every wonderful moment.

There is no________ that students will listen attentively in class, if they are _____ The World Cup in South Africa at night

. Mary was only too ready to help others, seldom, _____, refusing them when they turned to her.

--- Andrew won’t like it, you know. Can you change its color?

--- ________! I don’t care what Andrew thinks.

The whole world is undergoing the biggest financial crisis nowadays, ____ calls for international cooperation among all nations to get over.