There are many tall _in the city .They were _ in the last few years.(build)

问题描述:

There are many tall _in the city .They were _ in the last few years.(build)
请问这两个空用build 的什么形式

前一个应该填buildings.(building:建筑物)翻译过来就是:城市里有许多高大的建筑物.后一个填built,因为前面有be动词,所以要填过去式.翻译过来就是:他们(那些建筑物)几年前被建立.