首先,lose是瞬時(shí)動(dòng)詞,不能用完成時(shí),所以AD是錯(cuò)的.
其次,后半句的主語是the boy,如果選C應(yīng)該用losing the key；由于前后的邏輯主語不同,B在此處為獨(dú)立主格結(jié)構(gòu).
_____,the boy couldn't enter his house.
_____,the boy couldn't enter his house.
A.Since the key has lost
B.The key been lost
C.Lost the key
D.Having lost the key
答案應(yīng)該選B?為什么不能選ACD?請說明理由,謝謝~
A.Since the key has lost
B.The key been lost
C.Lost the key
D.Having lost the key
答案應(yīng)該選B?為什么不能選ACD?請說明理由,謝謝~
英語人氣：845 ℃時(shí)間：2020-04-16 17:57:05
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