They all like _____ teacher,空格处是填them还是their?不是说动词加宾格的吗?(我们老师说“动宾”)

问题描述:

They all like _____ teacher,空格处是填them还是their?不是说动词加宾格的吗?(我们老师说“动宾”)
我现在上初一,刚考过试,这是试卷的一个题目,我拿不准,想问问的,

They all like _____ teacher.选their
them是宾格;their teacher一起做宾格,意思是“他们的老师”.
their形容词“他们的”.