A _____ is a place under the sea with many fish and coral.

Scientists study animals living in _____ areas below the sea.

This mountain is made of _____ and looks red in the sunlight.

We had an _____ when we walked in the forest and camped overnight.

A _____ is a small river that flows through land.

A _____ is a place with many trees and lots of rain.

You use a _____ to find the right direction when you are lost.

An _____ is a person who travels to new places to learn about them.

Students need permission to _____ the school lab.

You _____ drop litter in the national park.

We _____ bring water with us on the trip.

It’s good for us to _____ a compass.

The scenery is ____.

_____ many waterfalls in this national park.

You are _____ to camp here.

Ha Long Bay is one of the _____ places in the world.

Ha Long Bay _____ in Quang Ninh Province.

This national park _____ many rare animals.

This area _____ covered by forest long ago.