Short explanation:
Short explanation: This is a sentence requiring the Past Simple affirmative form to describe an event that happened last night. The verb 'have' in the past simple is 'had'.
Step-by-step solution:
- The sentence structure is Subject + Verb + Object/Complement.
- The subject is 'You'.
- The time given is 'last night', indicating the Past Simple tense.
- The verb 'have' in the Past Simple is 'had'.
- Therefore, the sentence becomes 'You had a party last night.'
Answer: 2. You had last night.