习题中的语法问题(关于过去式),习题见问题补充.
习题中的语法问题(关于过去式),习题见问题补充.
John:oh,Ann,I'm glad I've caught you.Can you stay on and help us finish some work?You remember the new client I was telling you about yesterday?Well,we've got to do a presentation to her tomorrow.
Ann:But I was just leaving.这里为什么用was leaving,而不是is leaving?)
John:oh,come on Ann,please.It'll only be for an hour.
Ann:That's what you said last time.I was typing letters for two hours,这里为什么用was typing,而不是had been typing?),then when I had nearly finished them all,you made me do half of them again because you hadn't given me the right address file,so I had been doing them all wrong.这里为什么用had been doing 而不是had done?)
John:OK,if that's how you feel about it.But next time you need help,don't be surprised if I remind you that you refused to help me.这里为什么用refused,而不是has refused?)