1. That watch is better than this one .
* so sánh hơn . good >< bad 
2. My sister wrote more carelessly than she does.
 * so sánh hơn . có " did" - qkđ => dùng" wrote" + carelessly >< carefully
3. This is the most interesting story I have ever read.
 * so sánh hơn chuyển sang so sánh nhất .
4. I've never known such a beatiful girl before.
 * cấu trúc : S+BE+So sánh nhất +S + thì HTHT -> S + thì HTHT +....+before.

5. Tom drives more carefully than Peter .
 * so sánh ngang bằng chuyển sang so sánh hơn .

1. That watch is better than this one.
2. My sister wrote more carelessly than she does.
3. This is the most interesting story I have ever read.
4. I've never known such a beautiful girl before.

5. Tom drives more carefully than Peter.

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* Cấu trúc so sánh hơn 

S + be + adj-er/ more adj + than S2

* So sánh nhất 

S + be + the adj-est/ the most adj

* So sánh bằng 

S1 + be + as adj as + S2