As teenagers of the 21st century, we should be ready to _____ the challenge of society. 

 In class the professor__________ the finance project in simple but vivid language to make it easier for us to understand. 

________ take the aeroplane all the way, they decided to fly to Vancouver and then take the train from west to east across Canada.

Children who are over-protected by their parents may become ________.

Many people are beginning to reflect on why we pay so much to study abroad and what kind of consequences it will ________.