https://online2.tingclass.net/lesson/shi0529/0001/1240/20-09.mp3
https://image.tingclass.net/statics/js/2012
11. The doctor told Penny that too much ____to the sun is bad for the skin.
A. exposure B. extension C. exhibition D. expansion
<exposure>
exposure 暴露
</exposure>
<extension>
extension 伸展，扩展
</extension>
<exhibition>
exhibition 展览
</exhibition>
<expansion>
expansion 膨胀
</expansion>
