Mỗi câu có một chỗ sai. Hãy tìm lỗi đó và sửa lại cho đúng.
1. My brother is busyer than I am
2. Hanoi have population of 2.6 milion
3. Is your kitchen bigger than my kitchen?
4. How height is the Petronas Twin Towers?
5. Which season is coldest in your country?