The author of the report is well _____ with the problems in the hospital because he has been working there for many years.

The child was ____to go fishing alonebecause it was dangerous .

That so-called football fan doesn’t even know the main difference between the two football teams, _____ surprises all of the people at present.

They were making a plan to help those students _____, which attracted me

Swan made a promise to his father _____ he would have himself home early