Mary has lost her pen.have you seen it here and there?

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• 翻译：Mary lost her pen.Have you seen it here and there?
• ——Where is Mike?——He ______ to the library.A.has gone B.has been C.went to D.goseI don't believe that you can work out the problom,______?A.can you B.don't you C.can I D.can youI haven't seen her since my dear aunt _______ here.A.left B.has left C.is left D.had leftCould you tell me______________?A.where is the post officeB.how could I go to the post officeC.wher the post office isD.how i could go to the post office第二题的D是：D.can't I
• 1.Why didn't you watch the show yesterday?Because i ____it before.A.had watched B.have watched c.had seen D.have seen2.Mary hasn't phone us yet.what____to her?A happens B has happened3.There is a crossing.We don't know_____A.where we would go B which street to turn to说下原因啊 正确答案是a b b 我主要不知道为什么 要写全些
• she has put eraser where1、Jim's never seen the film（变反意疑问句）Jim's never seen the ,____ ____ 2、Jane met one of her good friends last week(用ever改为现在完成时） 3、he J.K.Rowling sold over two hundered million books Do you know (合并为主从复合句）Do you know if J.K.Rowling_____ _____over two hundred million books?5、she came here three years ago .（改为现在完成时） she ____ ____ here for three years
• 使用定语从句,将下列两个句子合并成一句1,She lost an English book.Its cover is dark blue.2,He has a penfriend.He's never seen her3,This is the way of life .She is looking forward to this way of life.改错．1,She moved to an old house her parents left it to her2,Do you know the girl who often help her classmates?3I'll do all what I can to help you.
• 1.-_____have you lived here?-since last year.A.How long B.How often C.How soon D.How far2.I hope he ______and join us.A.comes B.is coming C.will come D.came3.She won't go to see the play because she______her ticket.A.has lost B.is losing C.lost D.will lose4.- Is your father in?-No,he______for three hours.A.has left B.has been out C.went out D.has gone out5.-Have you written anything on chinese food so far?-______,but I've planned to do it.A.Ever since
• 用所给单词的适当形式填空：1、Did you read ___(yesterday) newspaper 2、We all like the wallet .We think it's the ___(cool) thing .填入适当的单词：1、That is ___ I gave him yesterday .2、Who has an English newspaper here ——___ one does .3、What did the teacher ask you ___ your father 4、Do you know Cathy ——Yes ,I read her article ___ the school magazine .5、Does Old Mary know that her students don't like her clothes ——Yes ,she doesn't mind ___ young people think of her .
• Mary has lost her pen.have you seen it here and there?
• 1.It is as pleasant ____day as I have ever spent.A.a B.the C.\ D.an2.Hundreds of jobs____if the factory closes.A.lose B.will be lost C.are lost D.will lose3.He ____in this college for five years before Icame here to study.A.has been B.had been C.have been D.is studying4.How____can you finish the drawing?A.often B.soon C.long D.rapid5.---_____the blackboard ,Mary?---It is your turn.I did it yesterday.A,cleaning B.you clean C.to lean D.don't clean第五题Mar
• Mary has lost her pen.have you seen it here and there?请问：为什么是用‘’have you seen‘’ 而不是‘’do you see‘’提问呢?
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• 方程lg2x*lg3x+a^2=0有两个相异的实数根,求实数a的取值范围