I have heard say that she will get married before long.

The time will soon come when anyone can travel in space.

The sailors were at the mercy of the weather.

The ship was at the mercy of the waves.

A time will soon come when people can enjoy space travel.

It will not be long before we can take a trip to the moon.

It won't be long before we can enjoy space travel.

I can't distinguish a frog from a toad.

The firefly was eaten by a toad.

The show's about to start.