advertising has promoted the production and sales of consumer goods.这个句子中为什么用has 构成现在完成时 而不用have呢?

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advertising has promoted the production and sales of consumer goods.这个句子中为什么用has 构成现在完成时 而不用have呢?

advertising has promoted the production and sales of consumer goods.这个句子中为什么用has 构成现在完成时 而不用have呢?
advertising has promoted the production and sales of consumer goods.
这个句子中为什么用has 构成现在完成时 而不用have呢?

advertising has promoted the production and sales of consumer goods.这个句子中为什么用has 构成现在完成时 而不用have呢?
主语advertising,名词,广告的意思,而且是单数,所以要用has,不用have.

advertising 广告是第三人称单数 用 has。

advertising 不可数名词,做广告。所以要用单数形式