Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.

1. Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.

2. An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear.

3. An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.

4. Executives’ being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.

5. Being heavily committed to a course of action, especially one that has worked well in the past, is likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.

答案C，但觉得C中的it指代有问题，哪位高人能告诉我it到底指代什么？

我当初研究的结果是选E。C 中的it指代却有歧义，句意应该指 a course of action， 可语法上指代不清楚.

虽然being 一般情况下不招人喜欢，可是prep中也有being 结构作主语的例子，而且我考试中也遇到了非选being 的题目。

个人认为C的it就是指代a course of action,至于大家觉得有歧义的应该是觉得it

也可指trouble吧～我不认为有歧义，相较于其他四个选项，只有C最好，signs of

trouble

的of trouble应该是修饰signs所以沒有指代歧义问题，open to discuss.