This is the second time that you ______ the Summer Palace.
A．visitedB．have visitedC．had visitedD．a(chǎn)re visiting
B

試題分析：根據(jù)主句時態(tài)是一般現(xiàn)在時可知，從句用現(xiàn)在完成時，故選B。句意：這是我第二次參觀頤和園。
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