The farmer said he saw _____ UFO in the sky the other day.

分类: 作业答案 • 2021-12-28 14:36:28

问题描述：

The farmer said he saw _____ UFO in the sky the other day.
A./.B.a.C.An.D.the.
为什么选B,

答

B
U 是辅音开头,不能用an