I have to see the doctor because I a lot lately.
A. have been coughing
B. had coughed
C. coughed
D. cough
网友回答
(答案→)A. have been coughing
B. had coughed
C. coughed
D. cough
解析：考查时态。句意：我得去看医生，因为我最近一直咳嗽得很厉害。lately表示“最近”，常与现在完成时或现在完成进行时连用，此处表示在说话之前一直在持续的动作，并且有可能持续下去，因此用现在完成进行时。