【题目】Only when students fail in the exam and are criticized severely ______ the importance of studies.
A. realize they B. they have realized
C. will they realize D. they will realize
在线课程【答案】C
【解析】考查倒装。“only+状语（副词、介词短语、从句等）”放在句首时，句子要用全部倒装语序。 再结合句子意思: 只有学生考试不及格，受到严厉批评，他们才将会意识到学习的重要性。故选C。