题目内容
12．Joe，my close friend，moved to Beijing years ago，and I him since then．| A． | don't see | B． | didn't see | C． | haven't seen | D． | won't see |
分析 乔，我的密友，几年前移居去了北京．自从那时以来我就没有见过他．
解答 答案：C；该题考查句子的时态．A don't see 一般现在时态； didn't see过去时态；haven't seen现在完成时态；won't see将来时态．根据句中时间短语since then可知本句描述的是一直持续到现在的动作，故用现在完成时态，故选C．
点评 根据语境，细读选项中的不同时态，选择正确的答案．
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