16．---Are you a football player？
---_____．（　�。�
A．Yes，I used toB．No，but I am．
C．No，but I used to be．D．Yes，but I used to be．

分析 ---你是足球運動員嗎？
---現(xiàn)在不是，但我以前是．

解答 答案C．考查語言交際．根據(jù)選項中的but I used to be可推斷，過去曾經(jīng)是足球運動員，但現(xiàn)在不是，故選C．used to過去常常．

點評 考查語言交際的題，弄懂選項的意思，結合前后文語境進行選擇．

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