If current population trends continue and states do not improve the education of all racial groups, the skills of the workforce and the incomes of U.S. residents are projected to 【dceline】 over the next two decades.

If current population trends continue and states do not improve the education of all racial groups, the skills of the workforce and the incomes of U.S. residents are projected to 【dceline】 over the next two decades.

A.fall

B.define

C.increase

D.deliver

正确答案是A