A:阳光→草→牛→虎
B:鼠→蛇→鹰
C:鹰→蛇→青蛙→昆虫
D:草→兔→鹰
There ____ (be) few students playing in the playground because of the coming exam, will there?
2+3-62-3+6
下图为世界某区域图。