Either you or one of your students to attend the meeting tomorrow.A. are; to be heldB. i

问题补充：

Either you or one of your students to attend the meeting tomorrow.

A. are; to be held

B. is; being held

C. is; to be held

D. are; having held

答案：

A. are; to be held

B. is; being held

(答案→)C. is; to be held

D. are; having held

解析：考查主谓一致和不定式的被动做定语：句意：要么你要么你的学生之一，要求参加明天举行的会议。主语是either..or...连接的，谓语和后面的一致，就是就近原则，这句话和one of your students，谓语是单数，排除AD，第二空填to be held做定语，修饰meeting，表示“将要举行的会议”，选C。