单项选择题

―――I feel sick,doctor.――____.
―――I'm not sure,but I have got a bad headache.
A.How long have you been sick?
B.I'm sorry to hear that.
C.How are you feeling now?
D.Do you have a fever?

A.――____.
B.
A.How
C.I'm
D.
C.How
E.Do