Young people who have got jobs may realize university lessons can’t be the only preparation for all of the situations ________ appear in the working world.

 Her friend did everything in his ________ to help with her business.

------When do we need to pay the balance ?------- ________September 30. 

Since Shanghai won the right to host the World Expo, over half a million people have volunteered to ___________in all the Shanghai Expo projects .

There were signs here and there, _____ visitors to look out for ______ rocks.