题目内容
用a 和an填空。
1.It is _____ ruler.
2.That is ____ key.
3.Is this ____ English book?
4.Look! It’s ___ UFO in the sky!
5.He is ____ NBA player.
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题目内容
用a 和an填空。
1.It is _____ ruler.
2.That is ____ key.
3.Is this ____ English book?
4.Look! It’s ___ UFO in the sky!
5.He is ____ NBA player.