We are needed to find a way we can think of as soon as possible________the pollution.
When I was in the countryside, I ____ by the riverside every day.
____ that they are inexperienced, they have done a good job.
The opening day of Expo 2010 Shanghai China we have been forward looking to_____ to arrive.
---You speak very good English. ---____.
There was a half smile on his face which suggested that he____happy to have given his life for his country.