Unwilling to his children, the old couple moved to the nursing home.
A. be burdened with
B. be burdened by
C. be a burden with
D. be a burden on
网友回答
A. be burdened with
B. be burdened by
C. be a burden with
(答案→)D. be a burden on
解析：考查词组：be burdened with有…负担，be a burden on是某人的负担，句意是：不愿做孩子的负担，老夫妇搬到疗养院。选D。