The sentence below contains errors. Select the option with the correct use of tenses.
I will revised my course at least three times before my final examination.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. I will have revised my course at least three times before my final examination.
The sentence refers to an action (revising the course) that will be completed before a specific point in the future (the final examination).
The correct tense for such a situation is the future perfect tense ("will have revised").