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        1. ______ he got ready to leave home, his parents came to his home.

          A.WhileB.AsC.UntilD.If

          B

          解析試題分析:句意:正當(dāng)他準(zhǔn)備離家的時(shí)候,他父母到了他的家。 As表示正當(dāng)一個(gè)動(dòng)作發(fā)生的時(shí)候,另一個(gè)動(dòng)作也發(fā)生了。故選B。
          考點(diǎn):考查連詞的用法。

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