—What did he say just now?—He asked me_________,A. when my sister came backB. when did my sister come backC. when will my sister come back
I never forget the days when I enjoyed ______ a good time in Beijing.
We shall never give up ______ for even one day.
Would you mind turning down the music? ______
---What should I do If I had a million dollars? --- If I ______ you, I would give it to medical research.
Students should ______ to choose their own uniforms.