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 Atouristmaylosehiswayinthemountains

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問題詳情:

 Atouristmaylosehiswayinthemountains

 A tourist may lose his way in the mountains __________ he has a map.

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

【回答】

D

知識點:連詞

題型:選擇題

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