37. Since the medicine had no on him he had to go to see another doctor the next day.A.

问题补充：

37. Since the medicine had no on him, he had to go to see another doctor the next day.

A. result

B. work

C. effort

D. effect

答案：

A. result

B. work

C. effort

(答案→)D. effect

解析：可联系答.案.网客服索取。