1) Your book is thinner than my book
->My book........ is thicker than your book....................................
2) She is most intelligent student in my class 
->No one in my class...... is more intelligent than she is.................................
3 The MeKong river is longer than the red river
->The red river........is shorter than the Mekong River.....................................
4) Ha Noi city is bigger than Hai Duong city
->Hai Duong city.... is smaller than Ha Noi city................................
5) Your school is not the same as my school
->My school is......different from your school.....................................
 

1 My book is thicker than yours
2 No one in my class is more intelligent than her
3 The Red River is shorter than The Mekong River.
4 Hai Duong city is smaller than Ha Noi city.
5 My school is different from yours
6 She is the most beautiful in my class.