anyone e to my office, please tell them I'm not available before four o’clock.
A. Might
B. Could
C. Would
D. Should
网友回答
A. Might
B. Could
C. Would
(答案→)D. Should
解析： 句意：如果有人来到我的办公室，请告诉他们在4点前我不在。这里用的是if虚拟语气的省略倒装，if anyone should e to my office,表示假设，这种虚拟条件句可以省略if，将should提前，其他几个情态动词might可能，could能够，would将会，都不能用于虚拟条件句，所以选D。