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        1. 精英家教網 > 初中英語 > 題目詳情

          I always sleep with windows open _______ it is too cold outside.

          A.untilB.if
          C.thatD.unless

          D

          解析試題分析:句意:我總是開著窗戶睡覺除非外面很冷。until  直到;if   如果; that那;unless除非。根據(jù)前后句子句意可知該選D。
          考點:考查連詞。

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