Her son, to whomshe was so ________, went abroad ten years ago.

Her son, to whomshe was so ________, went abroad ten years ago.

A.devoted

B.cared

C.loved

D.affected

答案及解析： A

解析：

前面有介词to。能与to搭配的只有A devote，devote to把……献给；

把……专用于。