问题
选择题
| — I have got a pain in my back. — No wonder. You _____ in front of the computer too long. |
A. have worked B. are working C. have been working D. worked |
答案
答案：C
搜题请搜索小程序“爱下问搜题”
| — I have got a pain in my back. — No wonder. You _____ in front of the computer too long. |
A. have worked B. are working C. have been working D. worked |
答案：C