GWD-10-10-SC

IRENEYI

Q10:

Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience.

 

1. Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is
2. Marconi conceived of the radio as a substitute for the telephone, a tool for private conversation, but which is
3. Marconi conceived of the radio as a tool for private conversation that could substitute for the telephone; instead, it has become
4. Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become
5. Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is,

The correct answer is E, why?

yd_charles

A conception was a substitute 错

B  but which is  前无对称的地方 错了

Cthat 这里修饰歧义，substitute 应该修饰 前面的a tool

D Which 这里修饰的是telephone , 不对

E 中a tool 做同位语 what it is 和名词 a substitute对称， 而且后文的 a tool 和选项中的a tool 呼应很好

我是这么想的   请指教