After three years of preparation for the 2011 Xi’an International Horticultural Expo (西安园博)会),the city is presenting the world______ many people think is the green Special Olympics.
In my view, London's not as expensive in price as Tokyo but Tokyo is ______in traffic.
Catherine, ____ the alarm clock for 6 o’clock, or you would oversleep and be late for the train.
The companies are working together to createthey hope will be the best means of transport in the 21st century.
The hotel wasn’t particularly good. But I ____ in many worse hotels.
The education of _______young is always _______ hot and serious topic in modern society.