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题库 / Prep2007E2-SC-140
By offering lower prices and a menu of personal communications options, such as caller identification and voice mail, the new telecommunications company has not only captured customers from other phone companies but also forced them to offer competitive prices.
has not only captured customers from other phone companies but also forced them
has not only captured customers from other phone companies, but it also forced them
has not only captured customers from other phone companies but also forced these companies
not only has captured customers from other phone companies but also these companies have been forced
not only captured customers from other phone companies, but it also has forced them
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意思应该是：通过提供更低的价格和一个诸如呼入者识别、声音邮件等个人通讯选择的选单，新的通讯公司不仅从其他手机公司那里获取了顾客也迫使其他的手机公司提供更具有竞争力的报价。
A：them作为代词指代不清。在but句中，充当objective与前面的customers平行。不符合ron的可接受pronoun ambiguity的条件。
B：不符合平行结构
D：不符合平行结构
E：不符合平行结构
not only...but also的结构them似乎在指代customers
companies必须补出来 不然指代不正确
剩余平行问题
not only...but also平行结构
AC选项比较，A中them指代不明确；C很优
a them指代不明