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　　what day was it yesterday

　　英：

　　美：

　　常见释义：

　　昨天是星期几

　　1、What a cold day it was yesterday!───昨天真是一个大冷天！

　　2、What day was it yesterday? It was Wednesday.───昨天是星期几？是星期三。

　　3、was it yesterday? It was Wednesday.───昨天是星期几？是星期三。

　　1、what was it───那是什么

　　2、it was day───今天是白天

　　3、yesterday was───昨天是

　　4、what if it was───如果是呢

　　5、it was yesterday───那是昨天

　　6、what was───是什么

　　7、what was in it───里面有什么

　　8、it yesterday───昨天的事

　　9、it was my day───今天是我的一天

　　用 what what was a reasonable price 是一个宾语从句，做at 的宾语，而 he thought 是插入语，省去不影响句子的完整性。