27. A: How are you feeling today, Mr. Lin?
B: _______________.
A: I see. Please sit back and open your mouth. Your throat is swollen, too. Do you have any other symptoms?
B: I also had a terrible headache last night.
(A) The hospital is crowded with patients
(B) The air is chilly out there
(C) I have been overloaded with my work
(D) I have been coughing and sneezing for days