Login or register (free and only takes a few minutes) to participate in this question.
You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.
Explanation: One says is, one says does, one says neither are perfect (should be neither is perfect), and I'm taking the only other option and saying both versions are quite acceptable (in UK English anyway).
How many hours does the superstore open on weekdays? [In English Starter, p.76]
Is that possible? It looks like a misprint to me.
There is one more sentence of this kind at the end of the same unit:
Do any shops open twenty-four hours a day? [Do or are?]