题目：
Although this medicine can cure you ________your illness, it has a bad effect____ you.
A．for; in
B．for; on
C．of; on
D．of; at
答案：
C
题目分析：句意：尽管这药医好了你的病，但它对你产生了副作用。cure sb. of sth.表示“治愈，改掉”；cure you of your illness医好了你的病; have an effect on sb.对……有影响，故选C。
考点：
