Question

I was caught in a traffic jam for over an hour, otherwise, I ________ you waiting for such a long time.

A. had not kept    B. will not keep

C. would not have kept    D. have not kept

Answer

C

【解析】考查虚拟语气。句意：我在交通堵塞中被困了一个多小时，否则我不会让你等这么长时间。句中用了虚拟语气，otherwise说明的从句内容和过去事实相反，指如果不被交通阻塞困住，主句用would/should/could/might +have+过去分词，故选C。

【名师点睛】

虚拟语气中，非真实条件句中的条件从句有时不表达出来，只暗含在副词、介词短语、上下文或其他方式表示出来，这种句子叫做含蓄条件句，在多数情况下，条件会暗含在短语中，如otherwise…,without…，but for…(要不是因为...)等

But for his help, we would be working now.

要不是他的帮助，我们还会在工作呢。

Without your instruction, I would not have made such great progress.

要是没有你的指导，我不会取得如此大的进步。

We didn’t know his telephone number, otherwise we would have telephoned him.

我们不知道他的电话号码，否则我们就会给他打电话。