20、A．My friend Li Ming goes to Beijing on Sunday．He goes out and wants to go to the shopping center．

B．Beijing is a big city．There are many tall buildings and big streets．If you^，re not a Beijinger，I think it's a little difficult for you to find some places．

    C．Then the old man goes away．Finally（最后），Li Ming gets to the shopping center．

    D．And he says，“Walk down the road，and turn left at the second street．Then you're on Wangfujing Street．Go along this street and you'll find People's Bank on your left and the shopping center is across from it．You have a long way to go．”

    E．But he doesn't know the way．He meets an old man and asks him how to get there．The old man draws a map on the ground for him．

排列句子，使意思完整通順。

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