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6. —I have got a headache. —No wonder. You_________ in front of that computer too long. (2007江西) A. work B. are working C. have been working D. worked怎么选为什么

题目详情
6. —I have got a headache.
—No wonder. You_________ in front of that computer too long. (2007江西)
A. work B. are working C. have been working D. worked
怎么选为什么
▼优质解答
答案和解析
C
work和are working是一般现在时和现在进行时,只说明了现在的情况,而未包含过去的,故排除A和B;而worked只说明了过去,未包含现在,故排除D,只有C用了现在完成进行时,既包含了现在,又包含了过去,说明了动作对现在的影响是你头痛了,是正确的.