We gave our hamburgers ____ sam. ( )
A:to
B:for
C:was
We show great respect for those who ____ (积极) take part in the sports meet.
鲜豆浆含有丰富的优质蛋白质及多种人体所需的微量元素,素有“绿色牛乳”之称.豆浆中的营养物质主要来自于黄豆的( )