Final answer:
The given sentences are intended to be completed using the past perfect tense. Here are the completed sentences: 1. By the time I got home, I hadn't seen my neighbors since the night before. 2. Before I finished my homework, it had already gotten dark outside. 3. After I got on the bus, I realized that I hadn't brought my backpack with me. 4. Before I went to sleep, I had watched TV for a little while. 5. After I ate lunch, I had already arrived at the restaurant. 6. By the time we got to the restaurant, it had already closed.
Step-by-step explanation:
The given sentences are intended to be completed using the past perfect tense. Here are the completed sentences:
- By the time I got home, I hadn't seen my neighbors since the night before.
- Before I finished my homework, it had already gotten dark outside.
- After I got on the bus, I realized that I hadn't brought my backpack with me.
- Before I went to sleep, I had watched TV for a little while.
- After I ate lunch, I had already arrived at the restaurant.
- By the time we got to the restaurant, it had already closed.