William will keep you _____ if you don’t want to be lonely.
A lot of people often forget that oral exams ______ to test our communicative ability.
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.