题目内容

We ___________ for a long time. Shall we play for a while?
A．studyB．StudiedC．have studiedD．are studying
C

试题分析：句意：我们已经学习了这么长时间了。玩一会儿好吗？结合语境可知前文描述的是一直持续到现在的动作，故用现在完成时态，选C。
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