A student was asked, "According to the passage about eyeglasses above [omitted], what kind of frames would look best on a man with a round face?"
The answer key gave these as sample answers:
He would be [I would prefer look] best in angular or square frames.
It's best to choose angular or square frames.
Angular or square frames are the best for him.
The student answered, "It is angular or square frames."
What's the best way to explain why this answer sounds so awkward?