2、The alarm was first gone off on the third floor．                   1_________

People left building hurriedly but in an orderly manner．                     2 _________

They came out carry their shopping bags and their parcels，               3 _________

some not properly wrapped and some not even paid．                      4 _________

Most passer-by waited in the street to watch．Many of the                 5_________

shops and offices in the street had just closed．Mr. Clement．              6_________

The officer in charge of，ordered all hoses（軟管）                      7 _________

to turned to the roof of the main building．People were pushed              8________

back from the area of their own safety．Seven officers                    9 ________

entered the basement or were driven back within minutes．                 10 _________

Hurriedly they put on their masks，ready to try again