As the clock struck nine, players ______their positions and the match began.
________that between 2000 and 2020,over 68 million people will die of AIDS in the countries most affected by epidemic.
The little boy was so careless with his spelling that he often________letters from words.
Many factories and banks in some countries have closed down as a direct________of the financial crisis worldwide.
-Water is the most precious resource in the world.-So the government________every one of us to save water.
We can hardly imagine Tom________the heavy task in a single day.