{!GRI|honorific expressions|l19-p1}.',
      
      quizlet : 
      '<div class="count-problems">'+
        '<p class="section-desc">You are the master of a ceremony (司会；しかい) at a school party. This is your speech, introducing your professor who will sing a song. Rewrite the blanks with {!GRI|honorific expressions|l19-p1}.</p>'+
        '<div class="problem">大川先生を紹介します。大川先生は、イリノイ大学の大学院で{勉強なさった|べんきょうなさった|answer