Howisyourgrandma?–She’sfine.Sheusedto

問題詳情：

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

知識點：動詞和動詞短語

題型：選擇題