·他过去常常去公园读书.
He used to read books in the park.·我们过去常在课后打篮球.
We used to play basketball after class.·--你妈妈年轻的时候常去溜冰吗?
--她不常常溜冰,她常常去散步.
Used your mother to go skating whenshe was young?
No, she usedn't.She used to walk.
 

• 牛津译林版
• 英语
• 八年级