He never used to swim in winter,____?
举一反三
- He never used to swim in winter,____? A: did he B: didn’t he C: was he D: wasn’t he
- He used to __(swim)when he was young. A: swim B: swimming C: swam D: swum
- ______ in the winter can boost your immune system. (Swim)
- People ________ in summer in lakes around the city. But now there is no lake available. A: used to swim B: used to swimming C: were used to swim D: was used to swimming
- 4. When he used the Internet for the first time, he felt he entered a completely ________ and exciting world he'd never visited before by just clicking the mouse.