Studies show that daydreaming contributes significantly to concentration powers and the ability _____ with others.

The maker of the popular game Angry Birds announced on Tuesday that it would open its first overseas operation in Shanghai, _____ a clear step to further enter the booming Chinese market. 

Little Tom admitted ______ in the examination, ______ that he wouldn’t do that in the future.

World Wildlife Fund ______ very much the efforts that China has made to protect endangered species from being further endangered.

In many people’s opinion, that company, though relatively small, is pleasant ______.

Arriving home tired, he had his wife ____ the dinner for him.

In order to catch up with her classmates, _____.

Time means everything, so I won’t have you _______your time like that.

Without facts,we can’t form a correct opinion,for we need to have actual knowledge____ our thinking.

You can imagine what great tuouble we had_____ the school for the blind.