Had the US Airways captain not guided his jet to a safe landing on the Hudson River, just west of New York, over 100 people aboard ______, along with many more on the ground.
23. --- Where ____ the recorder? I can’t see it anywhere.
--- I ____ it right here. But now it’s gone.
did you put; have set up B. have you put; put
C. had you put; was putting D. were you putting; have put