Dưới đây là các câu hoàn chỉnh dựa trên yêu cầu của bạn:

1. My old house is not as spacious as my current house.
2. This train is the most convenient of all the others.
3. Playing sports is more time-saving than playing computer games.
4. This food is the most delicious I have ever eaten.
5. Last year, Peter invested less money in his business than this year.
6. We have stayed at a better hotel than this.
7. Your kitchen is bigger than mine.
8. Dave is taller than anyone in the class.
9. Dad speaks English better than Mum.

Nếu bạn cần thêm hỗ trợ, hãy cho tôi biết!