问题
选择题
—Look! What's that in the sky ?
—Oh, it's_____________UFO. [ ]
A. an.
B. the.
C. a.
D. /.
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Look! What's that in the sky ?
—Oh, it's_____________UFO. [ ]
A. an.
B. the.
C. a.
D. /.
答案：C