— He's already back to Australia, _____?— _____. He is on a visit to Shanghai. [ ]A. isn't

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• －Your parents have never learned English, _____? －Yes, they learned a little. [ ]A. have they B. hav
• —You like listening to Sally's songs, don't you? —_______. She has a sweet voice. [ ]A. Ye
• He's been dead for 5 years, ______? [ ]A．isn't he B．wasn't he C．didn't he D．hasn
• —You have watched the short play, haven't you? — ________. I have learnt a lot from it. [ ]A. Y
• They can't be quarreling now, ______ they?[ ]A. can B. may C. are D. will -九年级英语
• Your friend Lili used to play the piano, _______? [ ]A. used she B. doesn't she C. didn't
• — They're interesting, aren't they?—______. [ ]A. Yes, they are. B. No, we aren't. C.
• She is a good student, ______ she?[ ]A. isB. isn'tC. doesD. doesn't-九年级英语
• Little smoke was getting past the towels, ____? [ ]A. was it B. is there C. wasn't it D. isn�
• My mother has to stay at home to look after my grandma, _______? [ ]A. hasn't she B. hasn'
• You bought a new computer last week, _______ you? [ ]A. aren'tB. don't C. didn't D. h
• A: It's already 6:30. You must go now, mustn't you? B: No, we _________. The school bus is
• Zhu Zhiwen's never been to Hongkong, ______? [ ]A. is he B. isn't he C. has he D. hasn
• I don't think he tried his best to learn English, ______? [ ]A. did he B. do I C. didn't h
• The old man could hardly read or write, ______? [ ]A. can he B. can't heC. could he D. couldn&#
• The farmer is working now. He's fed the horse and the sheep, ________? [ ]A. doesn't he B.
• Your mother got up early this morning, ______? [ ]A. did your mother B. didn't your motherC. di
• —Your brother doesn't get up early, does he? —_______. But he gets up late on weekends. [ ]A. Y
• I think Lucy is an English girl, ______? [ ]A. isn't she B. is she C. don't I D. do I -八年级
• — You don't come from America, do you? — ______. I come from England. [ ]A. No, I doB. Yes, I d
• Susan said she wasn't feeling well, ______? [ ]A. was she B. wasn't she C. didn't she
• You have never been to Bridge Street,_____? [ ]A. have youB. haven't youC. do you D. don't
• There is little milk in the bottle, ___? [ ]A．isn't it B．is it C．isn't there D．is there -八
• —This bus is always late, _______? —Sure, it is. [ ]A. is not itB. isn't it C. isn't the b
• He hardly hurt himself in the accident, _____? [ ]A: doesn't he B: didn't heC: did heD: do
• You've never seen such a wonderful film before, ? [ ]A. haven't you B. have you C. do you
• I don't think you are right, _______? [ ]A. are youB. are't you C. do I D. don't I -八
• Let's buy some meat for supper, ___? [ ]A．will youB．won't you C．shall we D．shan't we
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• She could hardly speak a word when she saw her son again, ______?[ ]A. can't she B. couldn'
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• My dad hardly ever has time for concerts with me now, _______? [ ]A．has he B．hasn't he C．doesn&
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• — You'll go swimming this Saturday, won't you? — ______. I have to work this Saturday. [ ]
• —Your father is a doctor, ________?—Yes, he is. [ ]A. is heB. isn't he C. are you D. aren'
• — Your sister likes light colours, ______? — Yes, she does. [ ]A. doesn't she B. isn't she
• 杏的花瓣表皮细胞属于（）A．保护组织B．上皮组织C．基本组织D．分生组织-七年级生物
• 一个已经高度分化的细胞仍然能发育成完整个体，这证明（）A．细胞有分化能力B．细胞有分裂能力C．细胞的全能性D．细胞有再生作用-七年级生物
• 具有输导水分、无机盐和有机物功能的组织是（）A．结缔组织B．输导组织C．基本组织D．肌肉组织-生物
• 苹果果实若保存时间过长，很容易腐烂，这是什么组织被破坏的缘故（）A．分生组织B．保护组织C．营养组织D．输导组织-生物
• 在无菌条件下，将非洲紫罗兰的一小片叶片接种到人工配制的培养基上，结果发育成完整的紫罗兰植株．该生物技术叫做（）A．人工授粉技术B．组织培养技术C．转基因技术D．发酵技术-生物
• 与番茄果实的表皮属于同一种组织的是（）A．番茄的果肉B．洋葱鳞片叶表皮C．三色堇叶叶脉D．西瓜瓤-生物
• 填写下列植物组织的名称和功能．A是______组织，具有______功能；B是______组织，具有______功能；C是______组织，具有______功能；D是______组织，具有______
• 某同学在冬季（气温较低，不宜花卉的快速生长）获得了一株优良的花卉，为了在短时间内繁殖出更多的该花卉分送给其他同学，该同学选择的最佳繁殖方法是（）A．无性繁殖B．扦插C．嫁接-生物
• 请将与左侧内容相对应的代表右侧内容的字母填在相应横线里．______（1）上皮组织A．血液______（2）输导组织B．茎的顶端______（3）肌肉组织C．保护、分泌______（4）结缔组织D．导
• 构成下列组织的细胞中液泡最大的是（）A．分生组织B．营养组织C．输导组织D．机械组织-生物
• 植物的主要组织有：______组织、______组织、______组织、______组织．-生物
• 大豆种子的种皮属于（）A．营养组织B．保护组织C．分生组织D．输导组织-生物
• “一骑红尘妃子笑，无人知是荔枝来．”荔枝是广东的重要水果之一，吃荔枝时，要将外层比较粗糙的皮剥下，剥下的这层皮属于（）A．保护组织B．分生组织C．营养组织D．输导组织-生物
• 下图为植物的几种主要组织，请分析回答问题：（1）根尖的细胞终生保持分裂能力，这样的细胞群构成的组织，叫做[]_________。（2）我们吃橘子时，剖开橘皮时看见的筋络，能够输导_-七年级生物