Comparisons in English grammar

-The sooner you tell me, the better.
-Your car is twice as big as mine.
-You are far better off without him.
-Exercise as much as you can.
-Take as many oranges as you want.
-My cake's every bit as nice as yours.
-My name's the same as my husband's.
-His proposal isn't as attractive as it seemed at first.
-I'm becoming more and more worried.
-He is by far the most talented speaker in the forum.