This famous tower has a long history. It more than 300 years ago.A. buildsB. builtC. is b

问题补充：

This famous tower has a long history. It more than 300 years ago.

A. builds

B. built

C. is built

D. was built

答案：

A. builds

B. built

C. is built

(答案→)D. was built

解析：句意：这座著名的塔有很悠久的历史了，它被建于300年前。一般过去时的被动语态，故选D