On the double 11th day, my uncle’s online store has successfully sold _____ shoes as last year, that is, it can hardly make ______ progress.
It's reported that a plane with five people __________ crashed several days ago.
__________ of 5000 visitors came to the exhibition. And __________,the museum got an income (收入)of $10,000.
The book cost me 12 yuan in all, postage __________.
Walking alone in the dark, the boy whistled to __________ his courage.
I don't think the experiment is __________ failure. At least we have gained __________ experience for future success.