As we all know Lost in Thailand is a very successful movie the cost of is only 30 milli

问题补充：

As we all know, Lost in Thailand is a very successful movie, the cost of is only 30 million yuan.

A. which

B. that

C. whose

D. whom

答案：

(答案→)A. which

B. that

C. whose

D. whom

解析：句意：众所周知，《泰囧》是一部非常成功的电影，这部电影仅仅花费了3千万。which引导定语从句，本句中先行词movie，指物，并且放在介词of之后，不能用that引导，故选A