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