[問題] 英文文法

[APE36 (PT鄉民)]

By the time I got to the end of his article,I felt I knew everything there
 ___ about the European Union Free Trade Agreement.
(A) was to know  (B) is being known  (C)had been known  (D) would be known
答案給A，請問這文法是? 為何不能選C、D呢?

They will be ____ their behavior, whether they accept the responsibility
or not.
(A) accountable for  (B) accountable in  (C)accountable to
(D) accountable with

答案是A，請益一下這題介係詞用法用to (C)的選項不行?

Kate would have been the one hospitalized if she ___ to you and taken the flu
vaccine.
(A)had listned  (B)hadn't listened  (C)would have listened
(D)wouldn't have listened

答案為B，請問D的選項錯在哪呢?文義不行嗎?

以上三題英文選擇題請益，謝謝

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                       Ｑ：高雄市的飆車族到底多不多？

　　　　　Ａ：飆車族不多阿，只有一兩台，前面五十台是不敢停下來，怕被砍

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→ atp3306: 感覺你高一對不對
→ zeephine: 第3題 因為他在說 假如當初他沒聽他的話和打疫苗 他就要
→ zeephine: 去就醫 所以 這樣就表示 他有聽他的話 所以他也不用去
→ zeephine: 看醫生 那這句就表示與事實相反 所以用had+pp
→ hsheng: (1) was to know 有表目的的含意 (2) be accountable for
→ hsheng: sth.  表示be responsible for sth.