At the end of that time, Cliff knew exactly what he had to do.

Some day, Cliff had known, his role would have to be found out.

Cliff knew that he had no alternative other than to retreat.

Cliff knew that this was no time for a break.

Cliff knew that he would have to make the break for himself.

Well did Cliff know that his aid was not needed at the present.

Cliff knew that the press card in his pocket should protect him.

Cliff knew that face; he'd seen it in a photograph.

Cliff knew that the corner of the table would be the meeting point.

Before his work was ended here, Cliff would know all about it.