词汇：earth, world, country等地理词汇 — 英语填空题
题目
用方框中的单词补全句子，每词限用一次：earth / world / country
1. China is a great ___. I love my country.
2. The sun, the moon and the stars are not on the ___, but in the sky.
3. There are many countries in the ___, and English helps people from different countries talk to each other.