题目内容
We ___________ for a long time. Shall we play for a while?
| A．study | B．Studied | C．have studied | D．are studying |
C
解析试题分析：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。
考点：考查动词时态。
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