You can change your job,you can move house,but friendship is meant to be________life. (2012·安徽,25)
I have no idea ______ the journalist could have got his information from.
The banker was found in a remote village after ______ his office last Thursday.
I’m sure you will do better in the test because you ______ so hard this year.
You’d be exposed to a lot ______ pollution if you moved to a town with pure water and air.
Some young people these days just ______ go out of their homes to contact the real world.