Thank you for your reply.
But they don't speak English or French.It will be difficult to manage their life. They already have lost their father soon. Will they be able to bear the loss of the rest of the family? How could their 7 years brother bear the loss of them ? I think it is hard to try .
Can they not learn sign language? And use sign language in their daily communication with others. They can also use certain technologies such as Google translate in their cellphone and turn on the speaker so that others can know what they were trying to say in English or French.