1. Bite the bullet: I have to bite the bullet and study hard. 2. Break the ice: He told a joke to break the ice. 3. Burn the midnight oil: She burned the midnight oil for her exam. 4. Hit the nail on the head: You hit the nail on the head with your answer. 5. Let the cat out of the bag: I let the cat out of the bag about the trip. 6. Under the weather: I’m feeling under the weather today. 7. Piece of cake: The test was a piece of cake. 8. Throw in the towel: Don’t throw in the towel just yet. 9. Spill the beans: Please don’t spill the beans about the surprise. 10. Caught between a rock and a hard place: She was caught between a rock and a hard place.
