yesterday是什麼時態標誌詞

例句：

1、That isn't quite square with what you said yesterday.

這跟你昨天所講的不大吻合。

2、Government sources indicated yesterday that cuts may have to be made.

政府方面昨天透露，削減可能勢在必行。

3、He made all the right noises at the meeting yesterday.

在昨天的會上，他的.話句句都合大家的胃口。

4、I feel an awful lot better than I did yesterday.

我覺得身體比昨天好得多了。

5、Ten new cases of bird flu were reported yesterday.

昨天新增十例禽流感病例報告。