Re: [文法] 多益改錯 情態助動詞

[summer59 (..)]

想問一下第6題答案為何不是C,用couldn't 前面有but連接詞為何是以後面so連接詞
作為判斷基準呢


※ 引述《summer59 (..)》之銘言：
: 有幾題不了解想問一下 以下這幾題 怎麼判斷 以及中文翻譯等 謝謝.
: 1.Last week the consultant said that the company shall hire a public relations
:                        (A) ------              (B)---------
:  firm, which would help their image greatly consdiering recent profit losses.
:           (C)-----------                  (D)-----------
: 答案是 (B)
: 2.The board of directors should be deciding now who will get promotions,
:                        (A)---------              (B)---------
:  who may be trained for managerial positions,and who would be fired.
:    (C)------                                       (D)--------
: 答案是(D)
: 3.Since she's been told that she would have seniority and can ask
:                                (A)----------            (B)-------
:  for a transfer,she shuold look for an opening in other departments and
:                  (C)-----------
:  submit a request.
: (D)----
: 答案是(B)
: 4.The committee agrees that a solution must be found right away,but the
:                                      (A)-------
:   members cannot agree on what it should be or who might have been  the
:         (B)-----                (C)---------     (D)--------------
:  best people to implement it.
: 答案是(D)
: 5.The procedures that we must follow when we will have problems using the
:                       (A)-----------       (B)---------       (C)-----
:  new copier are posted.
:           (D)------------
: 答案(B)
: 6.I would do it if I could, but I can't,so I wouldn't even try.
:   (A)--------      (B)-----    (C)-----    (D)--------
: 答案是(D)

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→ stranck:如果用 couldn't，(D) 就要改了
→ summer59:為什麼 不是時態一致嗎 那A及B選項也都用過去式的型態呀
→ summer59:可以說明為什麼嗎
→ librann:B是因為假設語氣吧
推 stranck:因為，如果 C 要改成 couldn't，就是過去式；
→ stranck:D 就要改成 I wouldn't even have tried ~