[文法] 一題文法選擇題

[achivement (喜歡現在的生活)]

題目：

I asked Helen Bill's disappearance, but she didn't know ______.

選項：
(A) why he had gone away
(B) why he hadn't returned back
(C) where he had gone to
(D) where he was at


正確答案為 (A)
為什麼不能選(B)呢?

thanks a lot!

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推 Chengheong:return = come/go back
推 chrisjon:B是說"為什麼沒回來"，跟disappearance沒關係