he改为复数形式

he是他,复数是他们they补充一下她是she,它是it,我是i,你是you,我用am,你用are,is用作他他它,be动词的用法
they:pron.他们;她们;它们;用以代替he或she,指性别不详的人;(泛指)人们,人人,众人
例句:
Cars are checked as they come off the production line.
汽车下了生产线立即进行校验。
They agglomerated many small pieces of research into a single large study.
他们把许多小的研究课题汇集成一个大项目。
Phone them up and find out when they are coming.
给他们打个电话,问问他们什么时候来。
They questioned the accuracy of the information in the file.
他们怀疑档案中信息的正确性。


