问题描述：
补全单词
Look!There is a car a() on the street.
Be c() when you cross the street.
我将比他先到北京.
I will () () () () him.
Look!There is a car a() on the street.
Be c() when you cross the street.
我将比他先到北京.
I will () () () () him.
问题解答：
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