The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

     One way to keep from getting bored, sad, and lonely is to go somewhere where things are happening. Sitting alone can make you feel frustrated. Instead of feeling sorry for yourself, get involved an become a participant. Offer your services in volunteer organizations. Help yourself by helping other people. Get involved in the world and the people around you, and you'll find they'll be attracted to you. You'll be on your way to making new friends and enjoying new activities.
Be a(an)（）