cho dạng đúng của các từ trong ngoặc
1. You should not waste (electric) and water.
2. the Great Wall of China is the world's (long) structure
3. I go to visit my grandparents (one) a week.
4. We hate him because of his (kind) to the children.
5. In Math I am (good) than in English.
6. He doesn't know the ( mean) of the word.
7. What is the (wide) of this table?