选择 In the past few years there ___great changes in our city.A.have been B.be C.had been D.are

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• 选择 In the past few years there ___great changes in our city.A.have been B.be C.had been D.are
• 2.Although Jack made a foolish mistake,we ____ at him.A.needn’t have laughed B.oughtn’t to have laughedC.may have laughed D.couldn’t have laughed3.I won’t be able to attend the meeting tonight because _____.A.I must teach a class B.I teach a classC.I will be teaching a class D.I will have been teaching a class4.Great changes ____ in our institute in the past few years.A.have taken place B.are taken place C.were taken place D.had taken place5.By this t
• In the past few years,there ______great changes in my hometown.A.have been B.were C.had been D.are一定要说明清楚为什么!
• 选择 In the past few years there ___great changes in our city.A.have been B.be C.had been D.are
• In the past few years,there ______great changes in my hometown.A.have been B.were C.had been D.are
• Mr.white left our school two years ago句意不变 Mr.White has ___ ___ from our school for two years
• in the past few years there have been great changes in my city,为什么是have