Our ___ conditions have imoproved greatly in the past 20 years

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• The life we were used to __greatly in the past 20 years A change B has changedC changing D have changed
• Our ___ conditions have imoproved greatly in the past 20 years
• take place 的用法有2个句子.1.Great changes have taken place in my hometown in the past 20 years.2.Our hometown has taken place great changes in the past 20 years.请问哪一句是对的.我们老师说第二句是错的,可是为什么?是因为take place的用法有什么规定吗?
• past perfect tenseShe talked about the new job on the way to London and before long,I realized that she _15__ for my firm.I _16__ in the firm for nearly 20 years.Our boss was really a very strict man.My own secretary _17__ so I must be her new boss._18__ fair to her.15) A had been working B will go to work C is going to work D was going to working 16) A had been working B have been working C worked D have worked 17) A was left B leaves C had left D ha
• 4道英语选择题的解释（正确答案已给出,只需说出选那个答案的理由）（B）___of people have never been there.A,Three fourth B.Three-quarters C.Three-fourth D.Third-four(B) Our life has greatly changed here since___.A.the seventieth B.the seventies C.seventy years D.the past seventy(A)There ___two minutes left.A.are B.is C.have D.has(B)There are ____in the garden.A.a kind of flower B.all kinds of flowers C.a few kind of flowers D.a few kinds of flower·请说出每道题为什么要选那个答案,越明白越好,我会给出相应的追加分!
• Great changes____ in our country during the past 20 years.A.have happened B.happened c.have been happened D.were happened为什么
• 英语翻译Dear boys and girls.I'm really sorry that it'll be only several days before you graduate from our school.I've always been feeling honored to have been your English teacher in the past 3 years,during which I have been greatly impressed by your good qualities,such as honesty diligence,cleverness,unself ishness,co-operation and so on.Never in my teaching career have I met such wonderful students as you.I dobelieve that your efforts will eventually pa
• The m___ in the countryside has been greatly improved
• 人眼成什么像?