For each question,complete the second sentence so that it means the same as the first.Use the word in brackets

1,For each question,complete the second sentence so that it means the same as the first.Use the word in brackets.You may need to change the word.
   1,No mountain in Viet Nam is as high as Fansipan.
     Fansipan..................................(Highest)
   2,No desert is as hot as Sahara.
     Sahara.....................................(Hottest)
   3,The USA is larger than Australia.
     Austrlia.......................................(Small)
   4,The Amazon River is longer than the Mekong River.
     The Mekong River...........................(Short)
   5,There are few people in this area of the country.
     This area.......................(Crowded)
   6,Hoa is the tallest in my class.
     No one............................(Taller)