She dusted the furniture very carefully.为什么要用carefully而不用carful?

She dusted the furniture very carefully.为什么要用carefully而不用carful?
She dusted the furniture very carefully.为什么要用carefully而不用carful?

She dusted the furniture very carefully.为什么要用carefully而不用carful?
修饰动词用副词,所以用 carefully,而不能用形容词 careful
不明白的再问哟,请及时采纳,多谢!