问题
选择题
| — You look very tired . _____ at all last night? — No, not really. I'm tired out now. |
A. Do you sleep B. Were you sleeping C. Did you sleep D. Had you slept |
答案
答案：C
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| — You look very tired . _____ at all last night? — No, not really. I'm tired out now. |
A. Do you sleep B. Were you sleeping C. Did you sleep D. Had you slept |
答案：C