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        1. We can’t pass the exam, ______ we study hard

          A.because B.unless
          C.though D.or

          B

          解析試題分析:句意:除非我們努力學(xué)習(xí),否則我們不會通過考試。A. because因為;B. unless除非;C. though雖然;D.or或者,根據(jù)題干分析此處是“除非”的意思,故選B。
          考點(diǎn):考查連詞的用法

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