题目内容

Miss Lin ____  a lot of work for the poor area for about 10 years.
A．doesB．did
C．has doneD．will do
C

试题分析：句意：在大约十年的时间里，林女士已经为这个贫困地区做了许多工作。分析：结合句意在十年的时间内已经做了许多工作，体现现在完成时，现在完成时构成：have/has done(动词的过去分词).主语是单数第三人称，因此用助动词has.故选C
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