Mr. Smith , in your eyes , ______that affects the development of China’s economy ?

It is culture more than anything else        determines how a nation’s civilization evolves.

It was not until dark         he found that it was the correct way to solve the problem.

You don’t need to make fancy foods to impress guests—it is something simple but good _____ will do.

 --- Have you really been to visit the Bird’s Nest in Beijing?　   ---- I ______ it last summer vacation.