It was three years ago that he joined the army与It is three years since he joined the army翻译及区

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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
• 现在完成时练习题 一、单项选择 1.Li Hong has ________ the army for 2 years.A.joined B.be in C.been in D.joined in 2.We have been friends since ______.A.children B.five years C.five years ago D.five years before 3.Mike ___________ the story for a month.A.has bought B.has had C.had had D.has borrowed 4.You ______ that question three times.A.already asked B.have already asked C.already have asked D.asked already 5.Those foreign friends left Guangzhou __________.A.since
• He left Chine five years ago He bought this book last year His brother joined the army last mouth4、I arrive have ten minutes ago 5、The train stopped half an hour age 6、He became an engineer ten years ago 7、They came to Japan last week 8、They went there yesterday 改同义句（用since或for改写）
• He____for three years A)has joined the army B) has been in the army C) has been an army这题为什么选B不选C呢?
• He in the factory for three years before he joined the Army.A has worked B works C had worked Dwill work
• John joined the army two years ago等于___two years since he joined the army
• 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?
• He____for three years A)has joined the army B) has been in the army C) has been serving in the arm
• Three years ____ ____ since he joined the army 填have passed ,have不对,passed对的.
• John joined the army three years ago.(用since或for改写） 怎么写.
• 有一电源电动势E=3V,内阻r=0.4欧姆,外接负载电阻R=9.6,求电源端电压和总电流
• John joined the army two years ago等于___two years since he joined the army