找出下列句子的一處 語法錯誤：
    Model United Nations is an academic competition which students have the chance to learn about international relations as well as diplomacy.
    ♜ 適用考題：
    At universities and colleges, sports and social activities are just as important as classes and libraries and should receive equal financial support. (TPO 1)
    答案：
    Model United Nations is an academic competition in which/where students have the chance to learn about international relations as well as diplomacy.