问题描述：
这句话哪个是谓语动词哪个是主语啊~
their migration may have been set up in motion by an increase in population caused by a movement of people fleeing the desiccation,or drying,of the Sahara.
如果一句长难句怎么才能很快的找出谓语动词 和 主语~
their migration may have been set up in motion by an increase in population caused by a movement of people fleeing the desiccation,or drying,of the Sahara.
如果一句长难句怎么才能很快的找出谓语动词 和 主语~
问题解答：
我来补答展开全文阅读