Beginner Level 初级 (chūjí)
The right answer to the test is B.
Translation:
Zhè yǔ yào xià dao shénme shíhou ya?
Lisa: 这雨 要 下 到 什么 时候 呀？
When will the rain stop?
Guǐ zhīdao, zài xià, zhōumò jiù bù néng chūqu wán le.
Emily: 鬼知道， 再 下，周末 就 不 能 出去 玩 了。
God knows. We cannot go out if it rains this weekend.
Analysis:
The phrase “鬼知道 (Guǐ zhīdao)” means “God knows.” People say it to mean that they don’t know why something is happening. It is usually used when others ask people a question to which there is not any sure way to answer; the reply being “I don’t know’ or “how can I know that?” Alternately, “鬼才知道 (guǐ cái zhīdao)” or “天知道 (tiān zhīdao)” are also used. These phrases usually express a sense of aggravation.
Examples:
Guǐ zhīdao tā zài shuō shénme!
鬼 知道 他在 说 什么！
Only God knows what he is saying!
Guǐ cái zhīdao tā dàodǐ zài xiǎng shénme!
鬼 才 知道 她 到底 在 想 什么！
Only God knows what in the world she is thinking.