首先確定,鑰匙肯定是被掉的,就是肯定用be lost這個(gè)結(jié)構(gòu),
CD都是主動(dòng)語(yǔ)態(tài),錯(cuò)誤
再分析,因?yàn)槎禾?hào)后面沒有連詞,說明前面不是完整的句子,只能是分詞作伴隨,表示原因,
既然是分詞,那么填的答案肯定是doing開頭
所以,答案A
現(xiàn)在分詞的被動(dòng)語(yǔ)態(tài)
be lost
be 用 doig 代替,就是being,
再看時(shí)態(tài),應(yīng)該是先掉鑰匙,然后進(jìn)不了房間,
所以,be 用 have done 代替
就是,have been lost
又因?yàn)橐衷~
所以,having been lost
The key ___,he could not enter the room.A having been lost B had been lost C having lost D losing
The key ___,he could not enter the room.A having been lost B had been lost C having lost D losing
英語(yǔ)人氣:352 ℃時(shí)間:2020-07-02 11:37:23
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