Yao Ming, who ______ the Houston Rockets, is working hard to make his dream come true

下列加粗词语的意义有错误的一项是(     )

He was the best_____playing chess

— Jack, do you know anything about Doctor Brown?—I ______ to him for years. I don’t see how anyone else could do better. [ ]

It is_____ for her to finish that maths problem in such a short time, because she is so clever.[ ]