How to say Fortunately in Spanish?

What does Afortunadamente mean in English? Spanish translations and examples in context.

Fortunately is translated in Spanish by...

Afortunadamente
Fortunately

Afortunadamente, ellos casi terminaron sus tareas.
Fortunately, they are almost done their homework.

Afortunadamente, mi madre me conoce bien.
Fortunately, my mother knows me.

Pero, afortunadamente, tenemos una chimenea en la sala de estar.
But fortunately, we have a fireplace in the living room.

Afortunadamente, encuentro una manera de entrar por una de las ventanas.
Fortunately, I find a way to get through one of the windows.

Afortunadamente, alguien lo vio pasar, pero ya no saben dónde está.
Fortunately, some saw him pass by, but they no longer know where he is.

How? Adverbs in Spanish.