Whenever someone is absent from school because of illness.中的be动词怎么理解?可以不用吗?
问题描述:
Whenever someone is absent from school because of illness.中的be动词怎么理解?可以不用吗?
答
这是【主系表】句型,表语absent 必须由系动词is 带出,要不然此句就没有谓语动词了