to their own work most of the parents spend little time with their children.A. DevotingB.

问题补充：

to their own work ,most of the parents spend little time with their children.

A. Devoting

B. To be devoted

C. Having devoted

D. Devoted

答案：

A. Devoting

B. To be devoted

C. Having devoted

(答案→)D. Devoted

解析：Dbe devoted to sth\doing sth 是固定搭配