I’m very disappointed with my neighbor.she said she would keep her cat off my grass.But she ()为什么用hasn't而不用didn't谢谢!

问题描述:

I’m very disappointed with my neighbor.she said she would keep her cat off my grass.But she ()
为什么用hasn't而不用didn't谢谢!

我觉得都可以用,疑问中

did't

but she hasn't完整的句子是she hasn't kept her cat off my grass.很显然这是现在完成时,所以你应该明白了为什么不能用didn't,它是过去时,不能体现对现在的影响.