This is Bob. He’s the person I ____ my last letter.

下列选项中加横线词语没有通假字的一项是（ ）

After AlphaGo defeated human Go champion, we started to worry about whether AI(人工智能)_________the place of human some day in the future.

How is the result, doctor? — Well, your health is ______ good, but you do have a few minor problems

Many people enjoy _______ the CD ________ Heart Strings.