use of A and An

There is ____ apple on the table.

• a

• an

• the

There is ____ rainbow in the sky.

• a

• an

• the

"When I was at the zoo, I saw ____ eagle."

• a

• an

• the

Have you seen ____ elephant up close?

• a

• an

• the

There's ____ nest in the tree.

• a

• an

• the

Jack has ___ brother and __ sister.

• a

• an

• the

The doctor gave Jane _____ injection.

• a

• an

• the

I want ____ coffee.

In my birthday, I want _____ cake of TikTok.

I bought only ___ 'MilkWay'.

• a

• an

• some