A．a picture that you have in your mind, especially about what someone or something is like or the way they look.
B．a technical process in which pictures of the inside of someone’s body are produced.
C．the process of making a scientific or computer model of something to show how it works or to understand it better.
D．the opinion people have of a person, organization, product etc.

A．"He never forgaved her for teasing him."
B．"She beganed to feel a sense of panic."
C．"Sheeps were grazing on the hillside."
D．"There are a desk and two chairs here."