With so much noise of the traffic, I couldn’t ____ and do my research work.

The story is _________ and all of us are_______ in it.

t become a serious climber until the fifth grade, ______ I went up to rescue a kite that was stuck in the branches of a tree.

On the top of the hill _________ the old man oncelived.

If you _______up late, you will feel tired the next day.