My friend, who _____on the International
问题:
My friend, who _____ on the International Olympic committee all his life, is retiring next month. [ ]
A. served
B. is serving
C. had served
D. has served
My friend, who _____ on the International Olympic committee all his life, is retiring next month. [ ]
A. served
B. is serving
C. had served
D. has served