If I were you, I ………… for that intensive English course.
Knowledge: Conditional sentences type II
Conditional sentences type II express a hypothesis, a wish contrary to the present.
Structure: If + S + Ved/ V2, S + would + V (infinitive)
If I were you, I would apply for that intensive English course.
If I were you, I would sign up for an advanced English class.
The answer to choose is: