— Anything new in the new rules?— They will be to us all.A. of great benefitB. do harmsC

问题补充：

— Anything new in the new rules?

— They will be to us all.

A. of great benefit

B. do harms

C. do many good

D. for the benefit

答案：

(答案→)A. of great benefit

B. do harms

C. do many good

D. for the benefit

解析：考查词组：A. of great benefit很有益B. do harms这里harm不用复数，C. do many good 不能用many修饰，D. for the benefit介词错误，选A，句意是---新规定里面有好的东西吗？--他们会对我们所有的人有利的。