I felt bad about it, though. 34 Jane: Oh, I’d have told her to leave after one week.
答案：(B) What would you have done?
Mary 說她對說謊感到愧疚，這句是 Mary 反問 Jane「換作是你會怎麼做？」（假設語氣），呼應 Jane 接下來同樣假設語氣的回答「我早就叫她一週後走了」（I'd have told her）；其他選項時態或語氣都不呼應 Jane 用假設語氣的回答。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個選項都是 What 開頭的問句，中文都能翻成「你做了什麼、你會怎麼做、你覺得她怎麼樣」，光看空格那一格分不出來。這一格必須拿下一句的動詞形態來對——這是本篇唯一一格有硬文法可依的題目。
空格是 Mary 說的，前一句她說 I felt bad about it, though.（不過我覺得很過意不去。）——心裡不安，所以想聽聽對方會怎麼做。關鍵在下一句 Jane 的回答：Oh, I’d have told her to leave after one week.（喔，換作是我，一個星期後就會叫她走了。）這裡的 I’d 是 I would 的縮寫，整串是 would have ＋ 過去分詞，這是與過去事實相反的假設語氣：事情已經過去了，Jane 也沒有真的遇上，她說的是「如果當時換成我，我會怎麼做」。既然答句用的是 would have ＋ 過去分詞，問句就必須是同一個形態才對得起來，所以填 What would you have done?（換作是你，你當時會怎麼做？）這正是條件句對齊的口訣：談過去的假設，助動詞後面一律接 have ＋ 過去分詞（同型：97 年第 23 題、110 年第 25 題、114 年第 11 題）。
What have you done?（你到底做了什麼？）：現在完成式，問的是實際發生過的事，而且這句話往往帶著責備的語氣；Jane 回的卻是一個假設，形態與語氣都對不上。What did you do to her?（你對她做了什麼？）：過去式，同樣問的是實際發生的事，而 Mary 剛剛已經把實際做的事說完了，沒有再問一次的道理。What do you think of her?（你覺得她這個人怎麼樣？）：問的是對房客的評價，Jane 答的卻是自己會怎麼處理，答非所問。三個誘答選項的共同破綻是：它們問的都是「事實」，只有正確答案問的是「假設」，而下一句給的答案是一個假設。
would have ＋ 過去分詞（當時就會……，與過去事實相反）、What would you have done?（換作是你會怎麼做）、tell sb to leave（叫某人離開）、That reminds me.（這倒提醒我了）、move in with sb（搬去和某人同住）、father-in-law（配偶的父親）。
Jane: Hi, Mary. It's been a while. How are you? Mary: OK, I guess. 31
Jane: Couldn't be better. By the way, is your house guest still staying with you?
Mary: No. After three weeks, she finally left. 32
Jane: So, how did you get rid of her? Mary: 33 I told her my parents were coming for a visit and I needed the room. I felt bad about it, though. 34
Jane: Oh, I'd have told her to leave after one week. That reminds me. My father-in-law is coming to visit us next week. Can I move in with you for a few days? Mary: 35
Jane: Please!