----“This book is ______ more useful for us students.”----“Yes, but it is _______ too difficult.”

 I haven’t seen______ this since I collected stamps.

As a manager, I know my emotions will affect people around me, so I’m going to make a  ____ effort to be more cheerful.

Many moving stories of that time remain______ in people’s heart to this day.

George Bush______was a politician,like his son George W.Bush.