题目内容
_______ UFO landed on Center Street and _______ alien came out.
A. A; a B. A; an C. An; a D. An; an
答案:B
练习册系列答案
相关题目
题目内容
_______ UFO landed on Center Street and _______ alien came out.
A. A; a B. A; an C. An; a D. An; an