问题补充：
.
She is the only one of those women archaeologists who chosen to go to Loulan.
A. has
B. has been
C. have been
D. had been
答案：
A. has
(答案→)B. has been
C. have been
D. had been
解析：“她是这些女建筑师中唯一一个被选中去楼兰的。”因为先行词被the only修饰所以定语从句的谓语动词用单数，同时又是被选中，答案B。
