题目内容

13．The teacher always tells her students that only if __________ hard _________ achieve success．（　　）
A．do  they work，will theyB．do they work，they will
C．they work，will theyD．they work，they will

分析 老师总是告诉她的学生只有努力学习他们才能取得成功．

解答 答案：C．
分析句子结构可知，that引导一个宾语从句，从句中为only+if引导的条件状语从句，后面的主句用部分倒装语序，而条件状语从句中不需要使用倒装结构；故选C．

点评 本题考查的是从属连词，要熟悉选项中从属连词的意思并结合具体的语境选择出正确的选项．

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