He risked __________ his job to see me off.
Though he had tried to climb to the top of the mountain several times, he didn't _____.
The good thing about children is that they _____ very easily to new environments.
Your performance in the driving test didn’t reach the requirements. _______, you failed.
The Chinese are proud of the Shanghai Expo ____ successfully in Shanghai in May,2010.
Don’t_____so rudely while she is telling you what happened.