Question

Sue is the only one of the employees who always work/works overtime.

Answer 1

The correct sentence is: Sue is the only one of the employees who always works overtime.

Here's why:

"Who always work" is incorrect because it assumes multiple employees work overtime, which contradicts the statement "Sue is the only one."

"Who always works" is grammatically correct because it refers to a singular subject ("Sue") and uses the singular verb form "works."