The dialogue contains both types of questions. The construction with qu' est-ce que c' est (What ist that, what
it is) as well as the construction with inversion.

see: Interrogativsätze


Oh, Salut Morgane = Hello Morgane

Salut Baptiste = Hello Baptiste

Ça va ? = How are you?

Here you have the choice. You can remember that as an idiomatic expression or you can try to find an explanation for the ça, see: Anticipation and reference with ça

Alors, comment vas-tu ? = How are you?

Question with inversion of subject / verb: see, A simple inversion can only be done with a pronoun

Ça va bien et toi ? = Fine, and you?

Ça va, ça va. = Not so bad

Depuis combien de temps es-tu ici alors ? = Since when you are here?

Question with inversion and preposition: Questions with interrogative pronouns and prepositions

Euh…je suis ici depuis six mois. = I am here since six month.

Depuis six mois ? = Since six month?

Et toi, combien de temps restes-tu ? = And you, how much time are you going to be here?

Je reste une semaine. = I will stay one week.

Alors, que fait-on ? = What we are going to do now?

On va visiter ? Tu vois, ça, c’est la porte de Brandebourg. = Are we going to visit something? Do you see that, this is the Gate of Brandenburg.

C’est magnifique. = That' s phantastic.

Qu’est-ce que c’est là-haut ? = What is that on top?

C’est une déesse sur son char. = That' s a goddess in a carriage.

Quelle déesse ? C’est la déesse de la Victoire. = What goddess? It is Victoria.

Hmm