Помогите пожалуйста срочно! Round up 5 Спасибо заранее

Question

Помогите пожалуйста срочно!
Round up 5
Спасибо заранее

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Answer 1

2 had finished, decided (had finished)
3 lent, had promised (had promised)
4 had studied, went (had studied)
5 bought, had sung (had sung)