Past participle full 1

What is the auxiliary of the past perfect?

• have / has

• had

• been

She ____ ____ in Germany some time ago like in 1977 in a building complex

• had seen

• had worked

• had lived

Darian ____ ____ the solution to the problem like a week ago

• had work

• had saw

• had checked

what is the participle of "choose"

• chose

• chosen

what is the past participle of buy?

• buyed

• buying

• bought

she had already ____ all the breakfast

• eat

• eaten

• eating

he had ____ _____ the accident ina a video

• had seen

• had looked

• had watched

she had ___ ____ the culture and science Museum in England

• already visited

• visited already

she ____ ____ thought in the plans

• had already

• already had

Darcy _____ _____ the class very fast ths timei

• had helped

• had used

• had understood