They’re arguing on who, on earth, is known for the great discovery        penicillin, an effective bacteria killer.

Although Jane agrees with me on most points , there was one on which she was unwilling to      .

—Excuse me, would you lower your voice or use your mobile phone outside? —Oh, sorry.I_______

Emergency line operators must always _____ calm and make sure that they get all the information they need to send help.

Scientists ____ thousands of chemicals before they decided on the right one in the end.

As is widely acknowledged, a great number of traffic accidents ____ numerous deaths and countless property loss all over the world every year.   

Books of this kind       well.

 We had a really bad time about six months ago but now things are______.

The boss said we had only three days to finish the work.Don’t worry. We have already ____?  two thirds of it.

Rather than            boring TV shows, he always prefers             original novels

 --- I was wondering if we could go skiing on the weekend. --- ______ good.

500 yuan can ______ all my monthly expenses. 

 Varieties of household goods are sold here, ________from babies’ toys to old men’s walking sticks. 

This is a new plane made in Shenyang, which is going to be_____ next week.

—What are you reading, Jim? —I’m not really reading, just _____ the pages.

 —Ken, why do you look so tired? —I _____ myself _____ the climate since I came here.

Traditional folk arts of Tianjin like paper cutting ______ at the culture show of the 2010 Shanghai World Expo.

China’s oil price _____ very sharp increase during the year 2010 and it is continuing to rise further in 2011.

— How is your son getting along with his work in England? —Well. He’s ___ very easily to the new environments.

With the stress heavier, physicians are always ______ caution upon citizens in view of heart attack.