Complete the sentence below by providing the correct idiomatic expression to fill in the blank.
Answer:To prepare thoroughly for the final examinations, the diligent student had to 【burn the midnight oil】 every night.
Answer
burn the midnight oil
The expression 'burn the midnight oil' is an idiomatic phrase meaning to stay up late working or studying. It fits the context of preparing for examinations.
Step-by-Step Solution
Key Concept
Idioms and Idiomatic Expressions