After the students put up Christmas decorations, the classroom ( ) a holiday appearance.
A.正确答案Atook on
B.built up
C.got on
D.picked up
After the students put up Christmas decorations, the classroom ( ) a holiday appearance.
After the students put up Christmas decorations, the classroom ( ) a holiday appearance.
A.正确答案Atook on
B.built up
C.got on
D.picked up