French language Q&A Forum

This is a very academic point. The translation for "Ils redoutent qu'elle ne revienne" is given as "They dread she might come back". In French, they dread that she will return. In the given English translation, even the possibility that she will come back is a cause for dread. I know that, in common speech, the distinction might never be made, but shouldn't the equivalent sentences be as follows?

 "Ils redoutent qu'elle ne revienne." = "They dread she will come back."

 "Ils redoutent qu'elle ne puisse revenir." = "They dread she might come back."

....compared to most other languages.

I wrote: 

.....comparée à la majorité D'autres langues. 

Why is it DES autres langues?

Also

........so my mother tongue would have prepared me.....

I wrote:

.....que ma langue maternelle m'aurait préparéE

I thought an extra 'e' was required because of la langue?

Why does mais "elle l'a réussi" get marked wrong, in lieu of "elle l'a eu?" Are they not synonymous? 

I would like to know if l' + vowel is for only feminine nouns or applies to both feminine and masculine. 

Merci