—The two old friends were ____ busy ____ with each other that they forgot the time.—Yes. They hadn’t met for over ten years, so they kept talking the whole night.       

There were about six ______ students in the school building during the earthquake, and ______ of them didn’t run out.

Of the seven days in a week, Saturday is said to be the most popular_______ for a wedding in some countries.

Though the old man didn’t have enough money, ________ he gave a thousand yuan to the charity.

----       does it take you to watch TV?---- About forty minutes.