为什么为里不用被动语态?

____A_ the diamond, he had to look for a place to hide it.
A. Having stolen B. Having been stolen
C. Stolen D. Stealing
钻石不是被人偷走了吗?但正确答案没有用被动?

Our food will run out.为什么不用被动语态 为什么用被动语态? 被动语态被动语态 hang 有无被动语态，为什么？ The room measures 2 meters arcoss. 为什么measure不用被动语态? 初中英语改句子为被动语态 将句子改写为被动语态 被动语态 被动语态? 为什么完成进行时态没有被动语态？