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

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