题目

Nowadays, there is a increasing number of people joining in the activities of volunteering. It's well­known that volunteering jobs are making contribution to society with something in return. It's as the Leifeng Spirit. However, knowing this, there are still many people would like to devote themselves in this trend. For instance, the 2008 Beijing Olympic Games has such many volunteers. They make lots of contributions to the success of the Olympics. Moreover, we can often see many students go to visit the old to bring warmth to them. Even though some people's career is a volunteer. TheyHe asks me ______ to use the computer.A.whyB.ifC.whetherD.what