问题
选择题
This is the second time that you ______ the Summer Palace.
A．visited
B．have visited
C．had visited
D．are visiting
答案
答案：B
题目分析：根据主句时态是一般现在时可知，从句用现在完成时，故选B。句意：这是我第二次参观颐和园。
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This is the second time that you ______ the Summer Palace.
A．visited
B．have visited
C．had visited
D．are visiting
答案：B
题目分析：根据主句时态是一般现在时可知，从句用现在完成时，故选B。句意：这是我第二次参观颐和园。