Sarah is better at chemistry than Susan.

• Susan isn’t as good at chemistry as Sarah.

My salary is high, but your salary is higher.

• My salary isn’t as high as yours.

Lan is a better cook than Hoa.

• Hoa can't cook as well as Lan.

She is a faster and more careless driver than I am.

• She drives faster and more carelessly than I do.

My house is smaller than yours.

• Your house is bigger than mine.

Your kitchen is not as big as mine.

• My kitchen is bigger than yours.

Tokyo is colder than New York.

• New York is not as cold as Tokyo.

My brother drinks more coffee than my sister does.

• My sister doesn’t drink as much coffee as my brother.

He can speak English more clearly than his friend.

• His friend can’t speak English as clearly as he can.

No one in the group is taller than John.

• John is the tallest in the group.

My house is the oldest on the street.

• No house on the street is as old as mine.

I can’t run as fast as you.

• You can run faster than me.

This song is not as wonderful as that one.

• That song is more wonderful than this one.

Tom is more intelligent than his brother.

• Tom’s brother is not as intelligent as Tom.

Nobody in the class runs as fast as Pedro.

• Pedro is the fastest runner in the class.

I have never read a better book than this one.

• This is the best book I have ever read.

Liam is the tallest boy in the class.

• Every other boy in the class is shorter than Liam.

Jack’s mother is 54. His father is 69.

• Jack's mother is younger than his father.

My camera cost $100. Yours cost $96.

• My camera is more expensive than yours.

Richard is younger than he looks.

• Richard isn’t as old as he looks.