What's this?It's( ) UFO.A.a B.an C.the D./无

来源：学生作业帮助网编辑：作业帮时间：2024/07/08 09:46:42

What's this?It's( ) UFO.A.a B.an C.the D./无
What's this?It's( ) UFO.A.a B.an C.the D./
无

What's this?It's( ) UFO.A.a B.an C.the D./无
选A 不能选B,因为U的发音不是元音