It's saying now that "a hotel" is a typo?? Is it not possible for it to be changed to just accept both "a" and "an?"
It says "a" is a typo and yet gives no option to put "an" when you are given the words to choose from.
"We opened a hotel" is accepted with "opened" marked as a typo ("en" is underlined). Weird!
a hotel not accepted. an hotel insisted upon.
a hotel is very common US usage