past perfect vs past simple

1. The robbers ___ the bank when the policemen finally ____

• left / arrived

• had left / had arrived

• had left / arrived

When the rain _____, the Atkinsons ____ planting trees.​

• started / had finished

• had started / finished

By the time Rebecca ___ into the store , she _____ soaked.

• had gone / got

• went / had got

Darcey ____ this castle before she ____ again last Sunday.

• saw / had come

• had seen / came

Mr.Palmer ___ any Chinese before he ___ to Peking.

• didn't speak / had moved

• hadn't spoken / moved

Sonny ___ fainted by the time the ambulance ___ the hospital. ​

• had got / reached

• got / had reached

When my mother ___ me an apple , I ___ my homework.

• brought / had finished

• had brought / finished

Mrs.Wilkinson ___ to drive the car because she ____ a terrible accident on the highway about a year ago. ​

• refused/ had had

• had refused / had

I ___of having a new house before I ___ that ad on TV.

• didn't think / had seen

• hadn't thought / saw

My uncle ___ Italian food before he ___ to that restaurant.

• didn't try / had gone

• hadn't tried / went