单元同步阅读专练,一、完形填空。 Dear Bryan， I came back from London with my parents this morning.The trip was _1_，but we had a great time in the end. First of all，we had to wait _2_ two hours because our plane had _3_ problem.When we _4_ London，it was raining.We didnt have any pounds(英镑) and the _5_ was closed，so we had to walk to the hotel.That day a big room was 500 a night.We booked(预订) a room _6_ we left Shanghai.But because the hotel didnt write it down(记录下)，they gave us the _7_ for 100 a ni
