fortunately

Fortunately for Sam, his pet hamster was alive.

My mom has fortunately agreed to help us with the science project for school.

[…]the best thing to do is to curl up with a good goose-flesher and try to forget, and fortunately I had packed among my effects one called Murder at Greystone Grange.

Fortunately, I've got you to talk to.

Fortunately, the fire was put out before it became too serious.

Fortunately, my son quickly adjusted to life in his new school.