Which of the following is an evaluative move used by a teacher in class to comment on students’performance？（）

单项选择题I would have told him the answer，but I （）so busy then.

A.had been
B.were
C.was
D.would be

单项选择题（）the same mistakes in the annual financial report again made his boss very angry.

A.His having made
B.He having made
C.He had made
D.He has made