题目内容
【题目】The old man was very tired _____he sat down and took a rest. ( )
A.soB.butC.becauseD.and
【答案】D
【解析】
略
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题目内容
【题目】The old man was very tired _____he sat down and took a rest. ( )
A.soB.butC.becauseD.and
【答案】D
【解析】
略