五、改错
The alarm was first gone off on the third floor．                 76 _________
People left building hurriedly but in an orderly manner．         77 _________
They came out carry their shopping bags and their parcels,         78 _________
some not properly wrapped and some not even paid．            79 _________
Most passer-by waited in the street to watch．Many of the          80 _________
shops and offices in the street had just closed．Mr．Clement．     81 _________
The officer in charge of, ordered all hoses（软管）               82 _________
to turned to the roof of the main building．People were pushed     83 ________
back from the area of their own safety．Seven officers            84 ________
entered the basement or were driven back within minutes．         85 _________
Hurriedly they put on their masks , ready to try again