are的過去式是什么

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

　　以前我們同學時，我并不太喜歡他。

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

　　隨著現代技術的到來，許多工作崗位不復存在。

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

　　所有的統計計算均由新的軟件系統完成。

　　A number of measures were taken to alleviate the problem.

　　采取了一系列措施緩解這個問題。

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

　　由于計算機出錯，上周未付任何款項。