问题补充:
I have to see the doctor this afternoon because I a lot lately.
A. have been coughing
B. had coughed
C. coughed
D. cough
答案:
(答案→)A. have been coughing
B. had coughed
C. coughed
D. cough
解析:考查动词时态。句意:今天下午我必须得去看医生因为我近期总是咳嗽。把握关键词:recently,近期,用于现在完成时,排除B C 和D , A. have been coughing现在完成进行时,强调动作持续不间断,说明咳嗽的严重,所以A正确。