they(宾格) have(第三人称单数)are(过去式)child(复数)plan(现在分词)nine(序数词)
问题描述:
they(宾格) have(第三人称单数)are(过去式)child(复数)plan(现在分词)nine(序数词)
do not(缩略形式)usual(副词)long(反义词)happy(比较级)
答
them has were children planning ninth don‘t usually short happier