题目内容

I have to see the doctor this afternoon because I ____ a lot lately.
A．have been coughingB．had coughedC．coughedD．cough
A

试题分析：句意：今天下午，我要去看医生。因为最近，我一直在咳嗽。表示动作从过去某一时间开始一直延续到现在，用现在完成进行时，选A。
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