【推荐1】The boy eats at ________ (little) four meals a day, so he is heavier and heavier.

【推荐2】__________(因为) the large population, there is less living space for each family.

【推荐3】根据句意及首字母或汉语提示完成句子中的单词
1. We____   at the airport at 3 o'clock.
2. The shop ____many school things last year.
3. A bird is singing at the____   of the tree.
4. It is Sunday today. He's lying on the sofa and_____   himself.
5. The kings lived in the ______(宫殿) several hundred years ago.
6. I can speak a little English but I can't speak   _____(法语)．
7. When did Thomas Edison invent the   ___(电灯)?
8. The Great Wall is_____ (举世闻名的) and thousands of people come to visit it.