--Howisyourgrandma?  ---She'sfine.Sheusedto            ...

问题详情：

-- How is your grandma?

   --- She's fine. She used to                  TV at home after supper. But now she is used to                  out for a walk.

      A. watch; go                 B. watching; go

      C. watching; going         D. watch; going

【回答】

 D

知识点：动词和动词短语

题型：选择题