buyers of this kind of are_____(main)foreign visitors

题目

buyers of this kind of are_____(main)foreign visitors

答案

mainly 副词 买这种（东西）的人基本上都是外国观光客.
后面mainly foreign visitors,为名词短语,前面形容词foreign 是中心词visitor的修饰语,
修饰形容词需要用副词 所以这里用mainly