It was october 28th(对它提问)（ ）（ ）thedate( )( )before yesterday

What
was
the
day

前面的答案表示当天的日期是十月二十八日。那么就是说问题问的是当天的日期是几号，说法为：
what is/was the date + 时间

例如：What is the date today?
What was the date yesterday?

问题的后半部分为before yesterday,那么常用的搭配为the day before yesterday--表示前天。

(What) (was) the date (the) (day) before yesterday?

What was the date the day before yesterday?