图形创意的操作步骤主要有:选择各种不同的设计主题,根椐设计主题选择或创作()。
A.主体图形
B.有机图形
C.偶然图形
D.独立图形
参考答案:A
She hasn't left her hometown ______ she lost her job. [ ]
A. since
B. for
C. in
D. until