Playing QQ’s “Happy Farm” by planting, watering, fertilizing, spraying, harvesting and selling of virtual vegetables, fruits and flowers, we can find out all the excitement is about.
A. that
B. if
C. what
D. when
网友回答
A. that
B. if
(答案→)C. what
D. when
解析：本题考查名词性从句。句中what引导宾语从句，在从句中作宾语。表示“我们能够所有的的兴奋是什么。”选C。