he returned home earlier than--(usual) for it was not a ordinary day.填ususlly还是usual为什么?

分类: 作业答案 • 2022-02-26 23:34:59

问题描述：

答

usual.
usual可用作名词,表示“惯例、平时”
……than usual 是固定短语.类似短语还有：as usual(和往常一样）
As usual, he came back home at six. 和往常一样,他六点回到了家.