–How is your grandma?She’s fine. She used to TV at home after supper. But now she is us

问题补充：

–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

答案：

A. watch, go

B. watching, go

C. watching, going

(答案→)D. watch, going

解析：句意：你的祖母怎么样？她很好。她以前在晚饭后在家看电视，但是现在她习惯于外出散步。be used to doing sth 习惯于做……，used to do sth,过去常常做某事。故选D