Once（ ）in the examination, your grade will be cancelled immediately.

— Have you finished（ ）your composition? It is time to hand it in.
— Not yet, I（ ）it the whole morning, but it is so hard that I only finished half of it.

Although students are given freedom to dress themselves, plain and simple clothes are commonly believed to be （ ） for school wear.

— Did you find the film boring?
— Not at all. It was（ ）

After the medical accident, she was reduced from head nurse to（ ）nurse. 

The little girl is walking along the beach, happy and joyful, （ ） bending down to pick up a beautiful seashell.

The young mother（ ）ever gets a chance to study, except when the children have gone to bed.

After quite a long time ride, we （ ）  arrived in our destination city, which is famous for its widespread maple trees.

There are enough night schools in this city. Adults can be educated no matter（ ）old they are.

Whatever background you come from, you can be （ ） successful with your hard work like many others.

It is （ ） to keep throwing my money away on such meaningless things.

As we all know, （ ） medical examination will help us find our health problems as early as possible.

With its expensive furniture and carefully（ ）color scheme, the room looked quite luxurious.

The manager promised to keep me（ ）of how our business was going on.

（ ）a big stone on the road, the truck stopped.

He was busy writing a story, only（ ）once in a while to smoke a cigarette.

— Which is the computer you want to （ ）? 

— The one over there.

（ ）in thought while driving, he almost ran into the car coming in the opposite direction.

It's a pity that some of the people（ ）cannot come to the party.

Excuse me, but it is time to have your temperature（ ）.