It is requested that each of the teachers inviteda performance at the party.A. should give

问题补充：

It is requested that each of the teachers inviteda performance at the party.

A. should give

B. will give

C. has to give

D. must give

答案：

(答案→)A. should give

B. will give

C. has to give

D. must give

解析：考查虚拟语气。动词require后面的宾语从句要使用“情态动词+动词原形”构成的虚拟语气，其中的should是可以省略的。故A正确。