Many cars had been produced by this factory.许多汽车被这个工厂制造
He had been told many times not to be late.他被多次告诉不要迟到
A house had been built near our school.一个房子被建起在我校附近
We had been warned to be careful of cars.我们被警告小心汽车
The meeting had been canceled.会议（已经）被取消
我用了基本上最简单的词了 行不行?