分类：教育/科学-升学入学-高考
-Why not ___us?A.ta part inB.join inC.joinD.attend
回答：选择C join的英文意思是：become a memeber of 汉语是成为。。。当中的一员。
take part in 通常是指参加活动
attend的英文意思是：be present at 是指出席，到场
join in 后面通常加正在进行的活动。
例如：Did you attend the lecture yesterday?
      He is always taking part in all kinds of activities.
      He joined the party in 1990.
      Please join in the game.