I guarantee you _______be rewarded for any useful clues to the missing

题目

I guarantee you _______be rewarded for any useful clues to the missing
document(文件) of the local Health Department.
A.shal B.may C.have to D.would

答案

D 虚拟语气
“我敢保证,如果你发现任何一条关于local health department 丢失文件的线索,你将得到奖励”