问题
选择题
— Have you been here before?
— Yes, it's the second time ______ I ______ the Great Wall. [ ]
A. when; visited
B. that; visited
C. when; have visited
D. that; have visited
答案
D
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— Have you been here before?
— Yes, it's the second time ______ I ______ the Great Wall. [ ]
A. when; visited
B. that; visited
C. when; have visited
D. that; have visited
D