,the boy couldn’t enter his house.A. Since the key had lost　　　　B. The key being lostC. Los

发布时间：2020-08-15 02:10:07

    ,the boy couldn’t enter his house.
A. Since the key had lost　　　　
B. The key being lost
C. Lost the key　　　　
D. Having lost the key

网友回答

A. Since the key had lost　　　　
B. The key being lost
C. Lost the key　　　　
D. Having lost the key
解析：独立主格结构作原因状语。
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