This is the first time I to the capital to attend the celebration ceremony.A. cameB. come

问题补充：

This is the first time I to the capital to attend the celebration ceremony.

A. came

B. come

C. have come

D. had come

答案：

A. came

B. come

(答案→)C. have come

D. had come

解析：考查固定句型; This is the first time+从句，从句的谓语用现在分词，句意：这是我第一次到首都参加庆祝仪式。选C。