Oxford Discover 3 - Unit 18: Why do we explore? - Lesson 2
<p><strong>1. Ôn tập từ vựng:</strong></p><p>goggles, kelp, penguin, squid, otter, coral, humpback whale, dolphin, leafy sea dragon, octopus.</p><p> </p><p><strong>2. Grammar:</strong></p><p>Want to / Need to / Have to<br>- Use want to when you have a choice to do something.<br>- Use need to or have to when you don't have a choice.