are的过去式是什么

I didn't use to like him much when we were at school.

以前我们同学时，我并不太喜欢他。

With the coming of modern technology, many jobs were lost.

随着现代技术的'到来，许多工作岗位不复存在。

All the statistical computations were performed by the new software system.

所有的统计计算均由新的软件系统完成。

A number of measures were taken to alleviate the problem.

采取了一系列措施缓解这个问题。

No payments were made last week because of a computer error.

由于计算机出错，上周未付任何款项。