Ⅰ.阅读理解(共15小题；每小题2分，满分30分)
A
Our plan was to drive into Cambridge，catch the 7：34 train to Liverpool Street Station，then to separate and meet again for lunch.We should have arrived at Liverpool at 9：19，but due to a typical London fog，the train had to move along so slowly that it was not until 10：30 that it got there.In spite of our late arrival，Joan，my wife's sister，decided that she would go to see the Crown Jewels in the Tower of London while we went shopping.It was only after her sister had disappeared into the fog that my wife realized that we hadn't decided where we should meet for lunch.Since I had our three tickets for the concert in my pocket，this was indeed a problem.There seemed to be nothing we could do except taking a taxi to the Tower of London，and try to find her there.Needless to say，we didn't find her.
