101.  A black plume of smoke rose above the city.

102.  A black van reversed through the shattered remains of the main gate and the back doors were thrown open.

103.  A blank wall the height of a house on your right.

104.  A blanket of fog covered the fields.

105.  A blanket of fog lay over the town.

106.  A blast of air knocked him over but he managed to crawl through a tunnel under Euston Road.

107.  A blast of cold air swept through the hut.

108.  A blast of heated air rushed past, and poisonous smoke belched towards him.

109.  A block of flats now occupies the site.