----What’s it that cost him the job?
---- experience .He was always very nervous.
A. Lacked
B. Being lacked
C. Lacking
D. To be lacked
网友回答
A. Lacked
B. Being lacked
(答案→)C. Lacking
D. To be lacked
解析：考查动名词做主语：句意：--是什么使他失去了他的工作？--缺乏经验，他总是很紧张。这句话是省略句，完整的句子是： experience cost him the job.这样可以看出是填的主语，用动名词，选C。