They ______play the piano when they were young.(could/be able to)
举一反三
- They ______play the piano when they were young.(could/be able to) A: could B: were able to C: was able to D: could/were able to
- They _______________ play the piano when they were young
- I heard the young girl _______(play) the piano when passing her house in the evening.
- I _______________ swim a mile easily when I was a child. A: could B: were able to C: was able to D: could/was able to
- 中国大学MOOC: _______ me most was that the young man who had lost both arms in an accident could play the piano beautifully with his feet.