The Doctor said that they had to get to the Tardis before it was too late.

The Doctor said that they would only know what year it was outside when they arrived.

The Doctor said that he had got a plan and that he knew how they could kill the Ice-men.

Romana told the Doctor that he was getting the time wrong.

Chronotis told the Doctor that he had heard very much about him.

The Doctor said that hey didn't know what was going on.

The Doctor said that there woudn't be enough time.