几个改错!请在半小时内回答,来不及了!
问题描述：
几个改错!请在半小时内回答,来不及了!
Up till now,I went to Paris three times.
I never read this book before.
Last summer I have seen him in the park.
He has been here half an hour ago.
When hve you gone th Bejing?
是改错！请问二楼，如果第一句是Up till now不动的呢？
答
1.Up to now,I have been to Paris three times.2.I have never read this book before.3.Last summer I saw him in the park.4.He has been here since half an hour ago.5.When did you go to Beijing?