①请你在图甲中作出反射光线OB的入射光线AO，并在图1乙中完成透镜的光路图．

②请你在图2中画出足球被运动员踢出后受力的示意图（不计空气阻力）．

I'd like to give them something _____ everything they've done for us. [ ]

A. in place of      

B. in return for        

C. in spite of          

D. in case of