Articles 'A' and 'An'

I have ________ test tomorrow morning.

• an

• a

• the

• -

Hurry up! The train will leave in _______ hour.

• a

• an

• the

• -

It is _______ elephant.

• a

• an

.... umbrella

• a

• an

... owl

• A

• An

........ apple

• a

• an

........orange

• an

• a

........ drum

• a

• an

........ eye

• a

• an

This is .......... egg.