3．Teachers will　 never be ______(取代) by computers in the classroom.

2．There is ______(广泛的) support for the government’s policies.

1．She is an ______(自立的) woman and earns her own living.

15．A

14．D。break down“出故障，坏掉”；in total silence“默不作声”；look on“参观”。

13．B。dating back to作定语修饰articles，相当于which date back to。

12．C。本题为虚拟语气。there existed a machine...为倒装句。

11．C。a heavy/strong accent“很重的口音”。voice“嗓音”；sound“声音”；dialect“方言”。