精选优质文档-倾情为你奉上剑桥通用五级PET考试练习题PET考题集锦完型填空:No. 01Being not far from the sea, London is famous (1)_ its fogs. The worst of them (2) _ on December 4,1952. All movement in the town came to a stop. It was almost impossible to drive or ride in (3)_. The streets which led into the center were filled with (4)_ that moved two miles an hour. Soon, however, the traffic was stopped. Being left by their (5)_, the buses and cars stood empty