indefinite articles A-An

1 . There is ____________________ green English book on the desk .
2 . She's reading ____________________ old comic .
3 . They've got ____________________ idea .
4 . He is drinking ____________________ cup of coffee .
5 . The girl is ____________________ pilot .
6 . Chetumal has ____________________ airport .
7 . This is ____________________ expensive bike .
8 . Look ! There's ____________________ bird flying .
9 . My father is ____________________ honest person .
10 . My friend likes to be ____________________ astronaut .