问题补充:
Dick is the only one of the teachers who Chinese. He is one of Mary’s friends who been to China.
A. know; have
B. knows; have
C. know; has
D. knows; has
答案:
A. know; have
(答案→)B. knows; have
C. know; has
D. knows; has
解析:在定语从句中,one of + 复数名词,前有the (only)时,从句的谓语动词用单数;前没有the (only)时,从句的谓语动词谓语动词用复数。句意:迪克是老师们当中唯一一个知道汉语的老师。他是玛丽的去过中国的朋友中的一个。所以选B。