根据Ron大神说initial clause修饰subject 又having done 只能做状语修饰动词不能修饰noun的话 那么having done不应该不能放在句首吗
下面都prep原题 having done为什么用放在句首了
Having finally reached a tentative labor agreement with its company's pilots, it must now be determined by the airline's board of directors how the airline can both increase profits and compete more effectively for customers than they did in the past.
(A) it must now be determined by the airline's board of directors how the airline can both increase profits and compete more effectively for customers than they did in the past
(B) it must now be determined by the airline's board of directors how the airline can both increase profits and must compete more effectively than in the past for customers
(C) the airline's board of directors must now determine both how to make the airline increase profits and compete more effectively for customers than they did in the past
(D) the airline's board of directors must now determine how the airline can both increase profits and compete more effectively for customers than it did in the past
(E) the airline's board of directors must now determine how the airline can both increase profits and also how to make it compete more effectively than in the past for customers