第一節(jié):單項(xiàng)選擇(共15小題;每小題1分,滿分15分)/
21. A child brings great joy to a family. Our ancestors ____________ the birth of a child by giving away red eggs.
A. congratulated B. memorized C. honored D. celebrated
22. Teenagers don’t know much of the world yet, that’s why they are so easily ___________.
A. taken in B. taken up C. taken on D. taken off