Qingming Day is also a day ____ people whose parents are dead visit the cemetery.
29. ______ that I made a mistake, I made an apology ______ him.
28. ______ on the top of the tower, and you can see the whole city.
27. I think that his advice is well worth __ .
26. Only after we left the building ______ how dangerous the situation had been.
24. In my opinion, you must try some of her home-made wine. It’s quite an unforgettable ___.