Mrs.Zhangis    allhertimeandenergy    beingamumrightnow...

问题详情：

Mrs. Zhang is     all her time and energy     being a mum right now.

A. devote; on   B. devoting; on      C. devote; to       D. devoting; to

【回答】

D

知识点：动词和动词短语

题型：选择题