It is difficult to imagine his _____ the decision without any consideration.
He got up late and hurried to his office, ______ the breakfast untouched.
Unfortunately, the research was limited __________ increasing economic profits, _________ protecting the environment.
The speech ____________ by Professor Smith was so interesting that the students talked about it all that day.
________ theme of the Shanghai Expo was “Better city, better life”. It sent _____ message to people around the world to care about the places where they live.
We have to realize: boys share activities, _________ girls share feelings.