He visited the Effel Tower which to 1889 during his stay in France last summer.A. dated

问题补充：

He visited the Effel Tower, which to 1889, during his stay in France last summer.

A. dated back

B. dates back

C. has dated back

D. has been dated back

答案：

A. dated back

(答案→)B. dates back

C. has dated back

D. has been dated back

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