-- You look tired， Miss Green.
--yeah . I puter games for two hours.
A. play
B. was playing
C. have been playing
D. am playing
网友回答
A. play
B. was playing
(答案→)C. have been playing
D. am playing
解析：句意：你看起来很累，格林先生。——是的，我一直玩了两个小时的电脑游戏。结合语境可知下文描述的是从过去一直持续到现在的动作，故用完成进行时态，选C。