What’s wrong with you, Eric? You look tired.— I ________ to prepare for the final exam last night.

It shows what has happened the forests of the USA in the last 350 years.[ ]

At that time, he spent as much time as he can_______the ancient status which would be sank in the river.

The hospital nearby has just got a , ______ you’d call it, er……a scanner.

You can’t get in. The exam _________ for over 30 minutes.