用英语说今天明天昨天是星期几怎么说?有哪几种,各是什么?（问语答语都要）

what's the date today ?
today is sunday

What's the date today?

What day is today?
Today is Monday.
What day was yesterday?
Yesterday was Sunday.
What day will be tomorrow?
Tomorrow will be Tuesday.
(What's the date today? It's Dec 5th.

What day is it today?
It's Monday.
What day was it yesterday?
It was Sunday.
What day is it tomorrow?
It's Tuesday.
or
What day will it be tomorrow?(但不常用)
It will be Tuesday.

---What day is it today?
---It is Sunday (today).
---What day was it yesterday?
---It was Saturday (yesterday).
---What day is it tomorrow?
---It is Monday (tomorrow).

What was the day yesterday?
It was Sunday.
What's the day today?
It's Monday.
What will be the day tomorrow?
It will be Tuesday.

What day is it today?今天星期几？
What day was it yesterday?昨天星期几？