In some cities it is very difficult to have a telephone and people have to wait a long

问题补充：

In some cities it is very difficult to have a telephone , and people have to wait a long time before they can get a phone.

A. assembled

B. installed

C. equipped

D. repaired

答案：

A. assembled

(答案→)B. installed

C. equipped

D. repaired

解析：install 安装；assemble(=put together) 装配；equip装备；repaire修理。