__ is known to the world, Mark Twain was a great American writer.

Not until the game had begun __ at the sports ground

Moviegoers know that many special effects are created by computers, they often don' tknow is that these scenes still require a lot of work.

The president is to give a formal __ at the opening ceremony.

When I am confronted with such questions, my mind goes __, and I can hardly remember myown date of birth

If they are willing to lend us the money we need,all our problems will be__