Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct.
When my calculations are wrong, I have to pore over the spreadsheet to find the error.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. No improvement.
- The sentence is correct and needs no improvement. "Pore over" is a phrase which is correctly used meaning to study or read something very carefully.