As is known to us all, failure usually_____laziness while diligence can______success.
.--------What do you think of the book I lent you yesterday?--------Oh, not too bad. It’s not too difficult_________.
.It is no longer _________it was 20 years ago, ________it was so poorly equipped.
.We’re looking forward to _______a chance to watch the opening ceremony of the London 2012 Olympic Games.
.--------Have you asked somebody to repair the machine?--------Oh, sorry, I forgot it. I _________for an engineer at once.
.Do you think it is ____ good manners to hear others’ conversations in _____curious manner?