What a nice bag! But she ______only thirty dollars for it.
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.
The party last night was __________ big success and all the people present had __________ great fun.
The two sportsmen congratulated each other __________ winning the match by shaking hands.