题目：Why did the farmer insist on giving the doctor one pound？A．He was thankful that the doctor
Why did the farmer insist on giving the doctor one pound？
A．He was thankful that the doctor cured him.
B．The doctor never accepted money from a poor patient.
C．The doctor thought it unfair to accept the money since he had done nothing.
D．He insisted that it was his second visit to the doctor.
推理题。文中提到农夫很爱钱，他在听说了这个医生给病人看第二次病时比第一次少收钱后想了很久，可以推断他坚持给医生一英镑是因为他想让医生认为这是他第二次来看病。因此最适合的答案是D
