helen has been studying piano for several years and she still___
a,has b,does c,has been d,did
人气：338 ℃ 时间：2019-11-08 15:47:02
解答
答案：B.翻译：海伦几年来一直在学习钢琴,并且她（现在）仍然在（学钢琴）.1.前句has been studying采用了现在完成进行时,该时态强调动作从过去开始,一直延续到现在,可能刚刚结束,可能现在还在进行,也可能会继续下去...
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