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

試題分析：句意：今天下午，我要去看醫(yī)生。因為最近，我一直在咳嗽。表示動作從過去某一時間開始一直延續(xù)到現(xiàn)在，用現(xiàn)在完成進行時，選A。
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