— I have got a backache.
— That’s not surprising. You in front of that puter too long.
A. work
B. worked
C. have been working
D. are working
网友回答
A. work
B. worked
(答案→)C. have been working
D. are working
解析：考查时态。句意：—我后背疼。—这不令人奇怪。你在电脑前面工作的时间太长了。根据句意可知你在过去一直时间一直都坐在电脑前面，对现在产生的影响就是你的后背疼痛，故使用现在完成时或者现在完成进行时。故C正确。