Although the working mother is very busy she still a lot of time children.A. devotes…on

问题补充：

Although the working mother is very busy, she still a lot of time children.

A. devotes…on

B. devotes….to

C. spends…to

D. spends…in

答案：

A. devotes…on

(答案→)B. devotes….to

C. spends…to

D. spends…in

解析：句意，尽管工作的母亲很繁忙，但是她仍然把大量的时间奉献给了她的孩子们。devote…to是固定用法，意思是把……奉献。