French language Q&A Forum

In the lesson on simple Passive tenses an example is:

Les étudiants étaient accueillis par le directeur tous les ans.
The students were welcomed by the headteacher every year.

In this lesson, we have the example above: Elles ont été surprises par ...

They were surprised by ...

In both cases the English tense is the same, but it differs in French. Is it important, or can you choose whichever you prefer. 

Instead of 'si ça avait été mes œufs' could you say 'si cela avait été mes œufs' - or would that be too formal ?

I would like to go back and improve A1. My score is currently 77%. How do I get it to have me review what I do not know well, which I thought was the whole point of the system.

Currently 7 of the 10 topics it gives me I have over 90%, and five of those are over 97%. These are not the topics I need to improve! I have no shortage of topics with lower scores in A1, obviously, with a 77% average in A1.

I am just clicking the "Test now" button next to A1.

Je ne partirai pas d'ici à moins que nous ne décidions où nous allions/irons?

Ou peut-être:

Je ne paritrai pas d'ici à moins que nous ne décidions où aller?

Can someone explain to me if it is only jeter and appeler that follow the pattern of becoming jetter- and appelle- in the future tense?

 Do all other verbs ending  as -eter and -eler follow the pattern of becoming -èter- and -èler- in the future tense