请问各位 题目如下
If you had not helped, I ______ not have done so well.
A. have
B. will
C. had
D. would
答案给C 为什么不是D选项would呢？
______, he was in Taipei.
A. When was seen last
B. When he last seen
C. When last seen
D. When had been last seen
答案C 请问为什么呢？
谢谢各位

第一题答案怪怪的，第二题分词构句省略主、动词抱歉讲错，你说的是对的，省略主词、连接词(可不略)。D 选项纯以文法来说，had 应该改为 having，语意时态对错暂不论。另外这里 C 选项因为被动的关系，be 动词有省略只留 seen。

第一个问题考假设语气的与过去事实相反的用法

请问一般美语人士平常会用第2题方式说话吗？还是这只是为了考文法而出的题目？

楼上会喔 推理或恐怖片常看到

真实日常对话应该不太会，一定是说 He was last seen in Taipei. 除非是事前想好的