问题
选择题
| You'd better have a rest. You _____ for more than two hours without a break. |
A. have worked B. have working C. have been working D. have been worked |
答案
答案：C
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| You'd better have a rest. You _____ for more than two hours without a break. |
A. have worked B. have working C. have been working D. have been worked |
答案：C