I
1- She had gone out.
2- It had changed a lot.
3- She’d arranged to do something else.
4- The film had already begun.
5- I hadn’t seen him for five years.
6- She'd just had breakfast.
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II.
1- He’d never flown before.
2- I'd never seen her before.
3- He'd never played before.
4- We'd never been there before.