Leave it to me! I feel much more _____ about myself and my abilities these days．

——Oh, I need help, doctor. Things aren't going all that well.——Like what？Can you be more _____ ？

Which food is called ________ food, milk, sugar or beans?

—How was your recent trip to Sichuan?—I've never had ________ one before.

John was dismissed last week because of his____attitude towards his job.