Mr. Li to give a talk in our school yesterday.A. invitesB. is invitedC. was invited D. in

问题补充：

Mr. Li to give a talk in our school yesterday.

A. invites

B. is invited

C. was invited

D. invited

答案：

A. invites

B. is invited

(答案→)C. was invited

D. invited

解析：句意：李先生昨天被邀请在我们学校做一个演讲。句中有明确的过去时yesterday.表示过去发生的动作，根据句意句中用被动语态的形式，故选C