请写出下列名词对应的英文缩写

A. able to be used
B. to step down from a position well liked
C. to do well

A. a lot
B. to legally take a child of other parents as one’s own
C. to create something that didn’t exist before

A. able to be used
B. an area of study or activity
C. a school term or period of time

A. to create something that didn’t exist before
B. people or a community in general
C. to attract