Select the most appropriate option that can substitute the underlined part in the following sentence.
We all have to pull our socks up for the upcoming Board exam, if we want to get outstanding grades.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. work harder than before.
The idiom "pull our socks up" means to work harder than before or to make an effort to improve one's performance.