Recently a survey _________ prices of the same goods in two different supermarkets has caused heated debate among citizens.

ught with her three friends, none of ______ I had ever met before.

etter for you to take some time to prepare yourannual performance _____ carefully, which willdecide whether you will get a promotion next year.

Hearing the 2008 Beijing Olympic Games ______, all the people in the Bird Nest burst into cheers

I was____late to catch a bus after the party,and wecalled a taxi