---Oh doctor the wound on my leg is infected.---You really shouldn’t have left it to th

问题补充：

---Oh, doctor, the wound on my leg is infected.

---You really shouldn’t have left it to the sun.

A. discovered

B. exposed

C. opened

D. buried

答案：

A. discovered

(答案→)B. exposed

C. opened

D. buried

解析：动词辨析。A发现；B暴露；C打开；D埋葬；句意：—医生我左腿上的感染了。—你不应该把它暴露在阳光之下的。根据句意说明B正确。