改错1.The red bag is cheapest of all the bags.2.Let's leave school at five ten in Saturday.

问题描述:

改错1.The red bag is cheapest of all the bags.2.Let's leave school at five ten in Saturday.
急需回答改错

1、cheapest ->the cheapest *前面一定要加冠词the
2、in->on 在星期几固定加on,in强调“段”,如in the morning,in the evening.但特指哪天或哪天早晨也要用on