单选题：Look over there-there's a very long, winding path ________ ..

_ that she didn't do a good job, I don't think I am abler than her.[ ]A. To have said B. Having saidC. To sayD. Saying

_____ a written permission, he had to write another letter to the president of the university. [ ]A. Not giving B. Not having been given C. Having not given D. Having not been given

Diana, ________ for months to find a job as a waitress, finally took a position at a local advertising agency. [ ]A. strugglingB. struggledC. having struggledD. to struggle

It is believed that if a book is________, it will surely________the reader.A．interested …interestB．interesting …be interestedC．interested …be interestingD．interesting…interest

He came into the classroom_________.[ ]A. very upset B. being upsetC. to upset D. to be upset