—I have got a headache.
—No wonder.You in front of that puter too long.
A. work
B. are working
C. have been working
D. worked
网友回答
A. work
B. are working
(答案→)C. have been working
D. worked
解析：现在完成进行时表示动作从过去某一时间开始，一直延续到现在，可能还要继续下去。根据所提供的情景“I have got a headache.”可判断出由于在电脑前连续工作而造成了头痛，故选C项。一般现在时表示经常性的动作或存在的状态；现在进行时表示正在进行的动作或存在的状态；一般过去时表示过去发生的动作或存在的状态。