问道逻辑填空题

miguel29

1, Concerned about financial well-being fo its elderly citizens, the government of Runagia decided 2 years gao to increase by 20% the government-provided pension paid to all Runagians over 65. Infalstion in the intervening period has been negligible, and the increase has been duly received by all eligible Runagians. Nevertheless, many of them are no better off financilly than they were before the increase, in large part because______

答案：In Runagia children typically supplement the income of elderly parents, but only by enough to provide them with a comfotable living.

这题也没看出有什么联系啊 。。。