To complete the text with the correct past simple or past perfect form of the verbs given, let's analyze each sentence in order:
Last night I (1) woke up suddenly at about three o'clock.
- Explanation: "woke" is the correct past simple form of "wake" to express an action that happened in the past.
I (2) had been in bed for about four hours.
- Explanation: "had been" is the correct past perfect form of "be" to show the duration of an action that started and ended before another past event.
I (3) lay there for a moment.
- Explanation: "lay" is the correct past simple form of "lie" to describe the action of remaining in a horizontal position.
I (4) had no idea why I had woken up.
- Explanation: "had" is the correct past simple form of "have" to match the past perfect form used earlier in the sentence.
Then I realised that I was on the floor. I (5) had fallen out of bed and woken myself up!
- Explanation: "had fallen" is the correct past perfect form of "fall" to show an action that occurred before another past event.
Therefore, the completed text would be:
Last night I woke up suddenly at about three o'clock. I had been in bed for about four hours. I lay there for a moment. I had no idea why I had woken up. Then I realised that I was on the floor. I had fallen out of bed and woken myself up!