The music echoed in the valley.

A lion is a powerful animal.

The roar of the lion echoed throughout the forest.

The lion let out a big roar.

We need to review the whole plan.

Looking at it as a whole, his plan is likely to succeed.

He went to school by crossing the bridge.

The forest is quiet.

We had a picnic in the forest over the weekend.

The forest is a quiet and beautiful place.