21. Students look at a town map and discuss the best route from the station to a hotel, and then they listen to a conversation andcompare their route with the one heard in the conversation. What main objective is this activity?
(A) To practice reading maps.
(B) To practice discussion about a problem.
(C) To practice speaking fluency.
(D) To practice listening for detail.(本試題卷共 6 頁，本頁為第 2 頁)