Choose the alternative that contains only UNCOUNTABLE NOUNS:

How __________ boys are in your class?

How _________ milk do you need for this recipe?

I love reading. I've got _________ books.

She asked me too ________ questions.

How _________ dollars do you have?

I waited for __________ hours.

There aren't ____________ houses in this area.

You didn't eat ___________ breakfast.

I don't have _____________ time.

How _______ salt did you put in the soup?