1) went ; had asked

2) started ; had prepared 

3) had destroyed ; stopped

4) surfered

5) had prepared ; arrived

6) had never met

1before i(go) out , i (ask) my parents for premmisson

=>          went    /     had asked 

2 before jane(start) to make cake she(prepare) ingedients

=>                 started           /               had prepare

3 the tonardo(destroy)many house before it(stop)

=>              had destroyed      /                      stopped

4people(surfer) from waterbonriner diseases after the the severe flood last year

=>        surfered

5they (prepare) carefully in the hummican before it (arrive)

=>    had prepared         /                                          arrived

6 i (never met) peter before the party last night

=>  had never met