He died just as a doctor arrived, having said nothing.

At last a doctor arrived who actually knew what to do.

Then, when the doctor arrived, he really had been shot.

The Doctor arrived too late to save two good men.

He was sitting like that, her hand in his, when the doctor arrived.

And she did not know that by the time the doctor arrived, it was already too late to do much for the baby.

But when the doctor arrived, the patient was past help.

The doctor hadn't arrived, but there were already four patients waiting.

I was surprised when the doctor arrived within an hour.

By the time the doctor arrived, she had finished that one and was having another.