It is reported that the United States uses ________ energy as the whole of Europe.
The terrible disease, ______ already kills about one million people each year, has grown resistant ______ standard medicine..
_____ well prepared you are, you still need a lot of luck in mountain climbing.
_____ from the fifth floor when the policemen surrounded him.
The boy, _____ parents went to the US last year, felt lonely.
Finally, the thief handed everything ____ he had stolen to the police.