am, fine, I, thanks(.)(连词成句)
in, a, map, this, is, English(.)(连词成句)
This is a jacket.（改为一般疑问句）
Frank is fine.（改为同义句）
This is a pen.(对划线部分提问)
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.
