French language Q&A Forum

From a quiz on usage of "quand" and future tense:

Question was:

Quand ils ________, tu iras les accueillir. .When they arrive, you will go and welcome themand correct answer given was "arriveront".However, I wonder if the futur antérieur would be more appropriate? They have to arrive before you can go meet them, right?So how about:Quand ils seront arrivés, tu iras les accueillir.

Do all inverted verbs use the subjunctive?

For example, I know that 'Penses-tu qu'il sache conduire?' is right, but does this apply to all inverted verbs? 

nope

is this correct - when you say to use the future of to drive.   surely it is the infinitive ?

À or Dans le campagne when do you use à la campagne, when do you say dans la campagne?