這是什么產品的廣告？

熱心網友

This advertisement is for which product?Which product is this advertisement for?

熱心網友

For what kind of product is this advertisement?

熱心網友

Of what product is this advertisement?疑問詞前面可以有介詞的。再比如：For what reason did he suicide?

熱心網友

就說，“What advertising is it?”就可以了吧~~~

熱心網友

What is product of this advertisement?