题目内容
. 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
【解析】

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题目内容
. I have to see the doctor because I_________a lot lately.
A. have been coughing B. had coughed
C. coughed D. cough
A
【解析】