Замените придаточные предложения герундием с предлогом after. ОБРАЗЕЦ. When she bought everything she needed, she went home. — After buying everything she needed, she went home.
My son got a job after he left school.
After she took her daughter to the kindergarten, she went to the library.
When the children came home, they started playing computer games.
After I thought for a while, I finally decided to buy that hat.
When they got off the train, they went straight to the hotel.
After leaving school my son got a job
After taking her daughter to the kindergarten, she went to the library.
After coming home , children started playing computer games.
After thinking for a while, I finally decided to buy that hat.
After getting off the train, they went straight to the hotel.