Questions 19 to 22 are based on the conversation you have just heard.

A．To cook something for him.
B．To wait for him.
C．To give him advice.
D．To have a meal and drink by himsel

A．dislike traditional food more and more, so they only try exotic food
B．love the food imported very much
C．have changed their tastes
D．get hooked on new tastes and flavors