A、At a hospital. B、At a shop. C、At a bar. D、At home. A根据doctor和tablets可知，对话发生在医院，故选A。

W: Did you cook the soup yourself, Mike? It’s delicious.
M: No. My mother cooked it for me.
Q: Who cooked the soup?

W: HOW do I take the medicine, doctor?
M: Three times a day and two tablets each time.
Q: Where does the conversation most likely take place?