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        1. The careless boy lost his key, _______ he had to wait for his mom in the cold.

          A.a(chǎn)nd B.or
          C.for D.so

          D

          解析試題分析:句意:這位粗心的男孩丟了他的鑰匙,因此他不得不在這個(gè)冷天中等待他母親的回來。分析考查連詞的用法,兩句之間的關(guān)系為因果關(guān)系,因此用并列連詞so.故選 D
          考點(diǎn):考查連詞的用法。

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