Mammals are covered by hair or fur, have a backbone and are warm-blooded. All female ma...
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Mammals are covered by hair or fur, have a backbone and are warm-blooded. All female ma...
In modern times we humans face changing conditions. For humans to live, we need clean a...
There are many forms of life on Earth, including human beings. Life exists in a variety...
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【英语语法百宝箱】代词3 在上一次的代词分享中，我们辨析了四组常见不定代词的用法，今天我们紧接着上节课的内容，继续学习不定代词的用法。 Group 5: no & none ...
Hey! Look at that. Look at what? Look out the window. Do you see the young lady in the ...
Here are 6 of the Earth’s 7 continents. Asia is the largest continent, both in land and...
This man goes running 5 days a week if the weather is good. On the weekends he runs 10 ...
Earth is where we all live. It is our home in the solar system. There is no other place...
