It is the first time that a developing country _______ the Expo, described as the Olympic Games of economy, science and technology.
Hundreds of people, policemen and civilians included, have got injured as a result of the political _______ in Hong Kong.
Nowadays many university graduates are facing the __________ about whether they should apply for a job or continue further study.
Tom has agreed to let me use his computer to surf the Internet, and _______ I’m treating him to a good dinner at the newly-built restaurant just around the corner.
Mrs. Jones, who let out a cry of pain from time to time, had to ________ an operation on her right ankle to relieve the pain.
Every time I take part in a friend’s big party I always go to talk to those who just sit alone so that they don’t feel ________.