Choose the correct options

Which tense is used for each of the functions below?

1. [Past Simple|Past Continuous|Past Perfect|Past Perfect Continuous] is used to stress the length of action in the past.
2. [Past Simple|Past Continuous|Past Perfect|Past Perfect Continuous] is used to talk about finished actions in the past.
3. [Past Simple|Past Continuous|Past Perfect|Past Perfect Continuous] is used to talk about the background actions in the past.
4. [Past Simple|Past Continuous|Past Perfect|Past Perfect Continuous] is used to describe a past action in progress, with an emphasis on the duration, that was finished before another past action.
5. [Past Simple|Past Continuous|Past Perfect|Past Perfect Continuous] is used to talk about an action finished before another past action.