根据情景要求, 完成对话。
(Mary goes to see a doctor.)
Doctor Smith： What’s your 1. ______ ?
Mary： I have a headache, a running nose and a sore throat.
Doctor Smith： You may have got a cold. 2.______ 3. ______have you been like this?
Mary： Since two days ago. What should I do then?
Doctor Smith： Well, there is nothing 4. ______
worry about. Take it easy. 5.______the medicine three times a day. Drink plenty of water. Be careful to keep warm.
Mary： All right.