选B.if not better than:如果不比小刘好,在这里是插入语成分,可以删去不看,对句子主干没有影响.这样,题干就变成了Xiao mao plays football as well as xiaoliu.(小毛踢足球和小刘一样好).将选项B代入题干,可以翻译为:小毛踢足球如果不比小刘好的话,那也是和他一样好.