It is 3 years since he joined the army 和It has been 3 hours since he left his office.为什么一个用is 一个用had been

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• 关于英语现在完成时的问题 1 His father joined the party _____ A.for three years B.since three years ago C.three years ago D.in two years' time 2.Her father____ in 1990 and her husband ____for more than five years.A.died ,dead B.has died ,dead C.died,has been dead D.has died.has died 3.Lihua's bother has ____for tuo years.A.joined the army B.been an army C.become a soldier D.been in the army 4.He hansn't ______ quanzhou ever since he left school.A.left B.been away
• 求高手解答现在完成时练习2.用since和for填空1) ______ two years 2) _______ two years ago 3) _______ last month4) ______ 1999 5) _______ yesterday 6) _______ 4 o’clock7) ______ 4 hours 8) _______ an hour ago 9)______we were children 10) _____ lunch time 11) ______ she left here1.He has lived in Nanjing ________ the year before last.2.I’ve known him __________ we were children.3.Our teacher has studied Japanese _________ three years.4.She has been away from the city ____
• It is 3 years since he joined the army 和It has been 3 hours since he left his office.为什么一个用is 一个用had been
• 用since和for填空.1.______ two years 2._______ two years ago 3._______ last month 4.______ 1999 5._______ yesterday 6._______ 4 o’clock 7.______ 4 hours 8._______ an hour ago 9._______ we were children 10._____ lunch time 11.______ she left here12.He has lived in Nanjing ________ the year before last.13.I’ve known him __________ we were children.14.Our teacher has studied Japanese _________ three years.15.She has been away from the city ___________ about t
• 看到一句It is 3 years since he joined the army.和一句It has been three hours since he left his office. is和has been可以互换?
• 看到一句It is 3 years since he joined the army.和一句It has been three hours since he left his office.is和has been可以互换?
• 用have/has been或have/has gone填空 1.My brother______ in the army for nearly three years.2.They______（never） to Yao'an.3.Miss Green________in Beijing since 1997.4.Lucy_______(always)a good student.5.A:Where______Mary_______?B:I think she_______to the cinema by herself.6.He_________to the museum.He was at the museum just now and is now already back.7.She________to the library.She________at the library for about two hours.8.A:_______you ever_______to Sydney
• 1.By the time you get back,great changes___in this area.为什么用问will have taken place?2.On his next birthday he __marries for ten years.用will have been 为什么不用has been?3.john _____now for the light in his room is still on .为什么选must be studying而不选must be studying?4.、I_____tennis quite well,but I have not had time to play since the new year.为什么用play不用played5.——Has sam finished his homework today?——I have on idea .He_____it this morning.为什么选was doing不能选has do
• It is 3 years since he joined the army 和It has been 3 hours since he left his office.为什么一个用is 一个用had been
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