问题
选择题
—Beijing is one of __ in the world today.
—So it is. [ ]
A. big cities
B. the biggest city
C. bigger cities
D. the biggest cities
答案
答案:D
—Beijing is one of __ in the world today.
—So it is. [ ]
A. big cities
B. the biggest city
C. bigger cities
D. the biggest cities
答案:D