А) I took an aspirin, when my headache disappeared.
B) After he drove 200 miles, he stopped for a break.
C)I couldn’t pay for my ticket because a thief stole ma wallet.
D)As soon as she passed her driving test, she bought a car.
E) I didn’t go to Italy, until I learnt Italian.
F) He didn’t tell the policeman that he took the money.
G) We didn’t tell Anna that George rang.
Вроде бы так

А When I had taken an aspirin,my headache disappeared.
B After he had driven 200 miles, he stopped for a break.
C I couldn’t pay for my ticket because a thief had stolen my wallet.
D As soon as she had passed her driving test, she bought a car.
E I didn’t go to Italy, until I had learnt Italian.
F He didn’t tell the policeman that he had taken the money.
G We didn’t tell Anna that George had rung.