问题
选择题
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
答案：C
考查介词：cure sb of sth治疗某人的病，have a bad effect on sb对…有不好的影响，选C。句意是：虽然这种药能治疗你的病，但对你有副作用。