We surely desire that the tour leader us immediately of any change in the travel schedules.
A. inform
B. informs
C. informed
D. has informed
网友回答
(答案→)A. inform
B. informs
C. informed
D. has informed
解析：考查的动词的用法。desire 后所接的从句用虚拟语气that sb should do sth ，should 可以省略。