一道语法题求助解释

wqlucy

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.
(A)     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.
(B)     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.
(C)     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.
(D)     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.
(E)     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.


本题的B选项最为困惑，OG对于这个选项解释是“ when they do appear.”应该变成“ when they appear do .” 这个地方及其不能理解。

hhftnt

此题我纠结了半小时。。。愣是没看懂解释