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A
    Karen and her best friend Dorothy were happy because they would go to London on vacation this weekend．They bought their plane tickets(票)and booked(预订)the hotel two weeks ago．
    The exciting weekend came．Karen and Dorothy arrived at London Heathrow Airport (机场)early on Saturday morning. They took the bus from the airport to the hotel．The hotel was great and there were a lot of trees around it．Karen and Dorothy were tired when they got to the hotel，so they had some sleep first. After about one and a half hours，they went out and took the sightseeing(观光)bus．They enjoyed the two—hour bus trip very much．After that，Karen and Dorothy went to a restaurant．They had a great dinner there．After dinner, they went back to the hotel．Karen and Dorothy were tired but they didn't want to stay at the hotel．They took a walk around the hotel and enjoyed the night streets．
    On Sunday Karen and Dorothy got up early and had breakfast in a small restaurant．The exciting trip started again．They did some shopping．They visited the museums and took a lot of photos．It was a really excellent weekend!
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