I think action films are more exciting than romance films.

• In my opinion, romance films are not as exciting as action films.

Salvador Dali’s paintings are different from Picasso’s paintings.

• Picasso’s paintings are not the same as Salvador Dali's paintings.

She takes photographs and collects coins as hobbies.

• Her hobbies are taking photographs and collecting coins.

"Chèo" or "Cải lương" are considered some kinds of traditional opera in Viet Nam.

• Viet Nam has some kinds of traditional opera like "Chèo" or "Cải lương."

My sister sings better than me.

• I don’t sing as well as my sister.

Ballets and modern dance are quite different.

• Ballets and modern dance are not the same.

The project was shorter than we thought at first.

• The project was not as long as we thought at first.