【题目】She thought it was worthwhile for her to teach in the small village to make a ______ to the life of the children there.

A.difference
B.sense
C.study
D.discovery

【答案】A
【解析】A.make a difference有影响，起作用；B.make sense有意义，说得通；C. make a study没有此短语；D.make a discovery发现；句意：她认为，以在小村庄里教书来影响那里的孩子们的生活对她来说是值得的。根据句意，故选A。