there ---a small boy --in the corner yesterday,and i helped him find his mother.A.was crying B.is cry C.was cries D.is c

分类: 作业答案 • 2021-12-03 11:45:59

问题描述：

there ---a small boy --in the corner yesterday,and i helped him find his mother.A.was crying B.is cry C.was cries D.is cries

答

A,yesterday表示过去时间段,动词用过去式,用was.陈述句可以用于过去进行时表示曾经发生的某件事