Entering the room, I found Mary ______at the desk and ______a letter.
Voices were _____ as the argument between the two motorists became more bad-tempered.
My brother likes eating very much but he isn't very _____ about the food he eats.
The members of the club wouldn't run a _____ in entrusting(委托) the organization to an unreliable person.
It isn't quite _____ that he will be present at the meeting.
John was very upset because he was _____ by the police with breaking the law.