It was when we were returning home ________ I realized what a good feeling it was to have helped someone in trouble.
________ in 1993,the EU,together with the US,is one of the two largest economies in the world.
________ the houses were knocked down in the earthquake.
Shanghai has ________ more foreign capital this year than last year.
Our graduation party was ________ success. We sang and danced until it came to________ end at ten o'clock.
What is bothering Obama is how to improve medical care to benefit people. __________, how to create health care system that helps people is his present-day trouble.