If you____hard, you____in the exam. ( 章节：7 难度：4)
- A、worked/ wouldn’t have failed
- B、had worked/ wouldn’t fail
- C、had worked/ wouldn’t have failed
- D、worked/ wouldn’t fail
正确答案:C
答案解析:有
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If you____hard, you____in the exam. ( 章节：7 难度：4)
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