1) COLD
-Inside is as cold as it is outside.
-In his house is not so cold as in ours.
-This room it the most cold in the room.(the+adj+est)
2)TALL
-She is almost as tall as Marry.
-He is not as tall as his brother.
-Victor is the tallest in the class.
3)EXPENSIVE
-This chocolate is as expensive as this bottle of water.
-The watermelon is not as expensive as the melon.
-This book is the most expensive in the store.(the+adj+est)
