_______ difficulty we meet with, we must finish it on time, because the opportunity is_______ valuable．

 As is known to all,       Yang Liwei has become a space hero is      we have expected．

You said boys were cleverer than girls. That is _____ I disagree.

Actually, girls can be _________ they want to be just like boys, whether it is a pilot, a nurse, or a general manager.

Steve Jobs once said: “I’m convinced that the only thing _______ kept me going was _______ I loved what I did.”