He was able ________ computers at a time when few children or adults could.
举一反三
- He was able ________ computers at a time when few children or adults could. A: to using B: to used C: to use D: used to
- Only when the new bridge was completed, __________return home for a short rest. A: could he to B: he could to C: he was able D: was he able to
- 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
- I had some free time yesterday, so I ____ write a few letters.( ) A: was able to B: might C: could D: can
- I________speak a little English when I was four. A: am able to B: was able C: could be able D: could