问题
选择题
Beijing is one of ______ in China.
A. the oldest city
B. an old city
C. the oldest cities
D. the old city
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Beijing is one of ______ in China.
A. the oldest city
B. an old city
C. the oldest cities
D. the old city
答案：C
