The boy ran out of the classroom without the teacher's _______.

When I came through the customs at the airport, I had to pay ________ on a clock I had bought.

She had clearly no ________ of doing any work, although she was very well paid.

She ________ her nervousness to the importance of the interview.

Since William had been seriously ill for several months, his parents were worried about________ to return to school full-time.