You won't pass your exams you work harder. A. when B if C. unless D. after 查看更多

 

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You won't pass your exams _____ you work harder.

[     ]

A. when
B. if
C. unless
D. after

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You won't pass your exams ________ you work harder.

[  ]

A.when

B.if

C.unless

D.after

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