The internal revenue inspector was surprised at _______ cooperative the corporate executives were during the tax verification.

Answer and explanation

Correct answer: C. how

The degree adverb 'how' precedes the adjective 'cooperative' in this noun clause ('how cooperative...').

Practise more Structure, Written Expression, and Academic Reading.

Free questions with an explanation for every one, and full timed SPMB PKN STAN mock tests.