“It's November 11th today ”中的“November 11th"划线提问是什么?

问题描述:

“It's November 11th today ”中的“November 11th"划线提问是什么?
还有“His sister likes music because it's interesting"中的“because it's interesting"划线提问是什么?

November 11th = What date
What date is today?
because it's interesting = Why
Why does his sister like music?
很高兴能够帮到你,希望对你有助,