Then it is a matter of waiting for the protagonists to arrive.

Yes, you’ll have to wait for an ambulance to arrive.

We are still waiting for the new comforter to arrive.

We were waiting for the completion of the 15 days.

And now, I'm just waiting for the baby to come :-)

Wait for the police and medical assistance to arrive.

They should then wait there for assistance from arriving firefighters.

And we didn’t even have to wait for Obama to take office.

We are not going to wait for assistance to come.

So this type of work had to wait until computers were available.

It no longer takes days to wait for the paper chart to arrive.

We should know when the pricing of the Galaxy Nexus gets announced.

It was almost like waiting for Santa Claus to come.

We will now have to wait for the next US Administration.

Q: Shouldn’t we wait until the ambulance arrives?