Tom was so wild about computer games that he would stay online for ten hours every day.A.

问题补充：

Tom was so wild about computer games that he would stay online for ten hours every day.

A. in the end

B. in particular

C. on end

D. on purpose

答案：

A. in the end

B. in particular

(答案→)C. on end

D. on purpose

解析：介词短语辨析。A最后；B尤其；C连续地D故意；结合句意可知C正确。句意：Tom对电脑游戏非常痴迷以至于每天他经常连续在线10个小时。