问题补充:
Some people say that the world is becoming smaller than before the Internet.
A. on
B. next to
C. because
D. because of
答案:
A. on
B. next to
C. because
(答案→)D. because of
解析:句意:有人说,世界因为互联网而变得越来越小。On在…上; next to紧接,紧邻;在…近旁; because因为,引导原因状语从句; because of因为,后跟名词或代词,所以选D。