But as soon as we ______(听到) mom's car coming back,we'd turn off the TV and run out into garden.为什么不用“sound”而用“hear”?求理由.

问题描述:

But as soon as we ______(听到) mom's car coming back,we'd turn off the TV and run out into garden.
为什么不用“sound”而用“hear”?求理由.

因为“听到”是一个动词所以要用hear sound是听起来的意思后面要加形容词

sound 是系动词,后接形容词,而这里(mom's car coming back)不是形容词