Most mountains in the world ___ by explorers.

This tiny island ___ by many tourists since last summer.

A few caves ___ yet.

The bridge ___ after the storm, so we can cross it now.

Those old tunnels ___ for safety.

The luggage ___ onto the bus already.

Has the mountain been climbed this year?

Have the suitcases been checked?

The path ___ by fallen rocks.

Several boats ___ by the waves.

climbed / been / mountain / has / The

haven't / The / been / caves / explored