Помогите пожалуйста.Вот задание:
Образуйте из двух данных предложений одно сложное,употребив прошедшее совершённое время.где необходимо.Добавьте необходимые слова:

(a) Pedro studied English. (b)He went to Paris.
(a) We got to the cinema. (b)The picture began.
(a)Hob ate all the cakes. (b)Olaf came to the house.
(a)The gardener finished digging the garden. (b)He put in the young cabbages.

After Pedro had studied English, he went to Paris. When we got to the cinema, the picture had begun. Hob had eaten all the cakes, when Olaf came to the house. After the gardener had finished digging the garden, he put in the young cabbages.