Tom saved the drowning child at the cost of his life, which set a good example ________ us.

Tom saved the drowning child at the cost of his life, which set a good example ________ us.

A.to

B.for

C.in

D.of

答案及解析： A

解析：

set an example to sb. "给某人树立一个榜样"，为固定搭配。