问题描述：
If you work hard enough ,you'll pass the exam.
改为祈使句 () hard enough,() you'll pass the exam.
改为同义句 If you () work hard enough,you'll () the exam,
改为同义句 Work hard,() you'll fail the exam,
改为祈使句 () hard enough,() you'll pass the exam.
改为同义句 If you () work hard enough,you'll () the exam,
改为同义句 Work hard,() you'll fail the exam,
问题解答：
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