问题
选择题
| I have to see the doctor because I _____ a lot lately. |
A. have been coughing B. had coughed C. coughed D. cough |
答案
答案：A
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| I have to see the doctor because I _____ a lot lately. |
A. have been coughing B. had coughed C. coughed D. cough |
答案：A