a/an

This is _ plane.

• a

• an

This is _ nice painting.

• a

• an

I am eating _ orange.

• an

• a

This is _ unicorn.

• a

• an

He is _ heir to the throne.

• a

• an

_ octopus has eight tentacles.

• A

• An

That is _ orca whale.

• a

• an

I like _ clear, blue sky.

• a

• an

This is _ avocado.​

• a
• an

This is _ unhealthy meal.

• a

• an