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题目内容
（淄博学院-英语）
_____, the boy couldn’t enter his house.(2 分)
A.Since the key has lost
B.The key was lost
C.Lost the key
D.Having lost the key
答案：D
A.Since the key has lost
B.The key was lost
C.Lost the key
D.Having lost the key
答案：D
参考答案