________ theme of the Shanghai Expo is “Better city, better life”. It will send _____ message to people around the world to care about the places where they live.
---Did you return where you had come from after college? ---No.I was lucky enough ______ abroad for further study.
That's surprising! It was an easy test and he ______ have passed.
It was not until the teacher came in ______ the students all shut up.
She didn't do well in the interview,so she failed to go to the university she______.
"I must be off now "she said,and ______ that she hung up the phone.