问题
选择题
—Is it English book?
—No. It's math book. [ ]
A. a; a
B. an; an
C. a; an
D. an; a
答案
答案：D
搜题请搜索小程序“爱下问搜题”
—Is it English book?
—No. It's math book. [ ]
A. a; a
B. an; an
C. a; an
D. an; a
答案：D