A / An

Category1

10

__ ant

an ant

10

__ umbrella

an umbrella

10

__ eraser

an eraser

Category2

10

__ ostrich

an ostrich

10

__ cake

a cake

10

__ notebook

a notebook

Category3

10

__ student

a student

10

__ chair

a chair

10

__ owl

an owl

Category4

10

__ key

a key

10

__ elephant

an elephant

10

__ octopus

an octopus

Category5

10

__ girl

a girl

10

__ igloo

an igloo

10

__ avocado

an avocado