106. Marconi's conception of the radiowas 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.(A) Marconi's conception of the radio was as a substitute for the telephone, a tool for private
conversation; instead, it is
(B) Marconi conceived of the radio as a substitute for the telephone, a tool for private
conversation, but which is
(C) Marconi conceived of the radio as a tool for private conversation that could substitute for thetelephone; instead, it has become
(D) Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become
(E) Marconi conceived of the radio to be asubstitute for the telephone, a tool for private conversation, other than what it is,
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正确选项是C，其他选项都有错误，这一点没有问题。
但是在C选项：
Marconi conceived of the radio as a tool for private conversationthat could substitute for thetelephone; instead, ithas become
1.OG上面说it清晰指代radio，从语义上没有问题，但是语法上不是会产生指代radio和tele的歧义吗？
I love mugs; they are adorable. 可以看出they指代前句宾语。
I love the mugs that are painted with flowers; they are adorable. 加上了从句they仍然指代mugs.
I love the mugs that are painted with flowers, which are adorable. 明显which指代flowers.
2.句中that在OG上没有说指代谁，但是我估计指代 the radio（和it一样），但是可以跨越这么多介词成分指代吗？求解释，最好有实例，谢谢了！
that修饰的tool不是the radio.
Most audiences considered the mistake that Justin Timberlake made on the superbowl performance an obvious farce （that was） fixed by Janet Jackson for her upcoming new album.
这里的可以看出that明显修饰farce而不是mistake
-- by 会员 Roxas605 (2012/2/2 17:18:39)