the teacher said this hope school ---two years ago1has been built2was built3is built4had been built

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the teacher said this hope school ---two years ago1has been built2was built3is built4had been built
the teacher said this hope school ---two years ago1has been built2was built3is built4had been built

the teacher said this hope school ---two years ago1has been built2was built3is built4had been built
2.was built
句子有ago,说明要用一般过去时.

2 过去式因为有ago

4 两年前就建好了,有个Ago,应该是明显的过去完成时。