The Mekong Delta is unique because it is home to a rich variety of wildlife.

She asked students if they understood English grammar well.

He asked when the best time to visit the Amazon Rainforest was.

Last week, the ranger showed the group the trees which are native to the area.

This course includes activities whose purpose is to improve speaking skills.

There are many simple ways to protect natural wonders. First, we must stop littering. Keeping these places clean is the easiest way to keep them beautiful. Second, the government should make strict laws to stop people from cutting trees or hunting animals in these areas. Third, visitors should follow the rules when they travel. For example, they should stay on the paths and not touch rare plants. Finally, we can use social media to tell our friends and family about the importance of nature. If everyone joins hands and acts responsibly, our natural wonders will be safe