This machine is very easy______. Anybody can learn to use it in a few minutes.
The old lady had a son and two daughters,________treated her well,which made her very sad.
The pilot asked all the passengers on board to remain ______ as the plane was making a landing.
Five people were reported ________ in the accident.
I felt it an honor _______ to speak here.
Bears often hide themselves in places ________ can’t be found by hunters.