将来/过去进行时,现在/过去完成进行时能举一下例子吗？She were doing his homework when the telephone rang.现在/过去完成进行时呢1.过去将来进行时：They said they would be coming 2.过去将来完成时：I thought you'd have left by this time. 3.过去将来完成进行时：we should have been working． 4.将来完成进行时：I shall have been working here in this factory for twen