【题目】You can use this room for your club activities tomorrow ______ you keep it tidy and clean.
A. for fear that B. in case
C. on condition that D. even if
在线课程【答案】C
【解析】考查固定短语。A. for fear that唯恐，以免；B. in case万一，假使；C. on condition that如果； D. even if即使，虽然。句意：如果你能保持这个房间干净整洁，明天你可以使用开展俱乐部活动。此处表示条件，故选C.