Ответ:
I helped my mum in the kitchen.
My sister studied in her room.
My mum washed the green car.
My granny walked to the shop.
My brother listened to music.
My uncle married a pretty woman.
My aunt used her new laptop.
My cousins arrived very late.
The baby cried a lot.
My dad fixed his old bike.
Объяснение:
Past simple Verb + V2(or -ed)
В данном упражнении все глаголы относятся к правильным, поэтому мы просто добавляем к ним соответствующее окончание ed.