Answer and explanation

Correct answer: C. not to make

  1. Step 1: Ask + object + to-infinitive.
Answer
not to make.
Why not the others: do not make, to not making and not make do not fit.

Practise more Structure, Grammar and Error Recognition.

Free questions with an explanation for every one, and full timed STEP (Standardized Test of English Proficiency) mock tests.

The teacher asked the… | STEP (Standardized Test of English Proficiency)