Boys and girls wish you to do well in the English exam a light heart. Good luck to everyo

问题补充：

Boys and girls, wish you to do well in the English exam

a light heart. Good luck to everyone!

A. on B. with C. without

答案：

解析：本题的含义为孩子们，希望你们用放松的心态来做好这次测验，祝大家好运，with表示通过某种方式，符合本题的含义，故本题选B。