The child with his parents _____trees the whole four hours.

问题描述:

The child with his parents _____trees the whole four hours.
A.plants
B.have been planting
c.has been planting
顺便说一下为什么,涉及到了什么知识点(所有的)

选C首先是主谓一致中的一个原则,就是当主语后有with, together with, as well as, along with等短语修饰主语时,谓语动词不受其影响,仍要同主语保持一致.这句话中主语是the child,所以用单数谓语动词,排除B.plants的...