“Teenagers who volunteer their time feel a sense of fulfillment that connects them to their communities.” That seems very moral.
It can show you what the speaker is doing and thus you will know why they are doing it. once you know this you will know what to expect in a speech and thus the speech does not work on you as effectively.
再见 pronounced=<span>Zàijiàn</span>
You answer is B as end would be the object other than bus in your sentence.