CH₃CH₂CH₂CH₃（正丁烷）和（CH₃）₂CHCH₃ （异丁烷）的关系是（　　）

用方框内所给单词的适当形式填空

（1）—Is your home far from here?   
—Yes, it’s a little ____  than yours.
（2）—Do you know Zhao Wei?   
—Sure. She is the most popular ____ .
（3）Last week’s talents show was a great ____ 
（4）The movie ____  for three hours yesterday.
（5）He lives in the ____ part of America.