Complétez les phrases avec un article (a / an / the)

e.g.	It's a beautiful morning.
1	I haven't got bike.
2	Would you like apple ?
3	sun is star.
4	There is interesting exhibition at local museum next week.
5	What's your job ? I'm engineer.
6	mouse is small animal.
7	river Thames flows through London.
8	Baseball is game.
9	She's got two children. boy and girl.
10	girl is twelve and boy is fifteen.