Bonjour pouvez vous m'aider s il vous plait à faire les exercices 1 et 2. Merci d avance

a- they couldn’t do their homework on a computer.
b- they couldn’t watch films at the cinema but they could watch DVD’s
c- they could go to Great Britain by train (jsp si celle la elle est juste puisque jsp d’où il viennent)
d- they couldn’t fly from Paris to New York within 8 hours.
e- They couldn’t send text messages but they could send letters