In the following five questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence, has an error.I really do regret not to learn to play the violin when I had so many opportunities to learn and practise in school.

• A. No error
• B. to learn and preactise in school
• C. when I had so many opportunities.
• D. I really do regret not to learn to play to violin