为什么说what are you doing Tuesday afternoon

题目

为什么说what are you doing Tuesday afternoon
英语书中的句子 绝对没错 但是为什么不是on Tuesday afternoon?

答案

先看:
What are you doing today?
What are you doing tomorrow?
这两个都知道的,而上面的Tuesday afternoon表示的是这个星期的星期二,相当于this Tuesday afternoo.
看:
What are you doing this Tuesday afternoon?
省略了this,看懂了吧.