下面是新目标英语9年级Review of units 11-15 2a, 2b Conversation 3里的,问题我在括号里写出来了,请帮忙分析,谢谢!
-We have to leave in half an hour. Is everything ready for the trip?
-I don't know.
-Well, have you packed the travel guidebook?(问句用的现在完成时)
-Yes, I did.(回答用的一般过去式,为什么不用yes, I have.) Oh! But I forgot the map.
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