Look! He is walking ( ) in the street.a.slowly b.slow c.careful d.lazy
问题描述：
Look! He is walking ( ) in the street.a.slowly b.slow c.careful d.lazy
答
选A，这里walking是动词，需要一个副词来修饰，四个答案中，只有A是副词，而且意思也贴切。就意思而言，ABC都可以，但是BC是形容词，不能修饰副词。
答
Look! He is walking ( a)in the street.a.slowly b.slow c.careful d.lazy
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答
选a.slowly 缓慢地