Devoirs de Maths

Sujet du devoir

Bonjours,
Je dois faire un devoir en anglais (traduction). Voici les phrases à traduire :
http://i.imgur.com/bWBgS.jpg

Où j'en suis dans mon devoir

He doesn't know
He has forgotten
She can't jump over the fence
She answered
He said nothing ou he didn't say anything
He has been killed
She has been arrested
you had trouble

you should listen to me
he couldn't speak
She likes watching soccer matches
Stop talking!

Mais j'ai besoin d'aide pour la traduction de DO/DID