It’s crazy of you to spend more time playing computer games than you studying. A. areB. h

问题补充：

It’s crazy of you to spend more time playing computer games than you studying.

A. are

B. have

C. do

D. will

答案：

A. are

B. have

(答案→)C. do

D. will

解析：句意：你花了比学习更多的时间来打网络游戏简直就是疯了。than 前后动词形式要一致，前面是you spend,所以后边用you do代替you spend。选C。