--How is your grandma?--She is 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.watch; going D.watching; going正确答案C
--How is your grandma?--She is 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.watch; going D.watching; going正确答案C
