They look__and behave __.They have many__.(different)
问题描述：
They look__and behave __.They have many__.(different)
答
different,differently,differences
第一个空格,前面是look,后面要用adj；第二个空格,修饰动词behave,要用副词形式differently；第3个空格,往前面是many,要用名词复数形式differences