1. He is taller than me.

⇒ I'm shorter than him.

2. One red pen is worth more than the other red pen.

⇒ One red pen is not as valuable as the other red pen.

3. She is the prettiest out of the other 3 girls.

⇒ In the remaining three girls there is no one prettier than her.

4. My sister swims better than me.

⇒ I swim worse than my sister.

5. The road to Hanoi is farther than the road to Thai Binh, right?.

⇒ The road to Thai Binh is closer than the road to Hanoi, right?

1.I'm shorter than him

2.(????)

The other red pen is not as valuable as one of them

3.She is the prettiest girl of the three

4.I don't swim as well as my sister

5.Is the road to Hanoi is ffarther than the road to Thai Binh?

câu 2 chăc slaf mình ko dúng cho lám :/