With modern equipment many mysteries have to light in recent years.A. boughtB. comeC. thr

问题补充：

With modern equipment，many mysteries have to light in recent years.

A. bought

B. come

C. thrown

D. appeared

答案：

A. bought

(答案→)B. come

C. thrown

D. appeared

解析：句意：由于有现代化的设备，近年来许多谜团被揭开。“揭露，将……曝光”是come to light，故答案为B项。