第1个回答 2013-08-14
You won't pass the exam unless you study hard.除非你努力学习,否则考试不会及格.
第2个回答 2013-08-09
You will fail the exam if you don't study hard.
除非你努力学习,否则考试不会及格
第3个回答 2013-08-09
Unless you work hard,you will fail the exam.If you don't work hard,you will fail the exam.
第4个回答 2013-08-09
Unless you study hard, or do not pass the exam望采纳