Duolingo English Test practice questions in the real exam format and timing.
The ancient forest provides a safe and irreplaceable home for hundreds of rare bird species that simply cannot survive anywhere else.
Coral reefs are widely recognised as some of the most beautifully diverse ecosystems on the entire planet, but they now face very serious threats.
Unusually heavy rain last month caused the river to overflow and badly damaged several small family farms along the narrow northern bank.
Dozens of dedicated volunteers spend their free weekends planting new trees in an ongoing effort to restore the damaged local woodland area.
The national park was originally created many decades ago to protect critically endangered animals from both illegal hunters and property developers.
Đọc chậm và rõ ở những cụm dài: ecosystem, conservation. Ngắt đúng chỗ.
Record 90 seconds. You get four criteria, the exact words that slipped, and your own sentence rewritten two levels up.