She was so________in her job that she didn’t hear someone knocking at the door.

(2013·湖北高考)While intelligent people can often ________ the complex, a fool is more likely to complicate the simple.

I called Mom yesterday and she said she had something delicious ____ for me.

— Tom, are you going swimming with us?— I’d love to, but something important has ______.

_______by the teacher, she took two books away from the reading room.