What are schools required to do to make the lunches healthy?
A、Provide balanced meals.
B、Make up new guidelines.
C、 Design their own menus.
D、Cook with more vegetables.
P: No, not very serious, but the doctor told me to stay in bed and have a good rest. S: I see. I’ll _____55_____ as soon as he came back. P: Thank you. Goodbye! S: Bye!