The notebook must _____ Li Lei's. It has his name on it.[ ]A. belong B. belong to C. beD. be to

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• It isn’t going to rain, so you take an umbrella with you.A．mustn’tB．shouldn’tC．needn’tD．can’t-九年级英语
• —Where is Zhang Hua? Is he in the classroom now?—He be there, for I saw him in the teachers’ office
• The boss has given everyone a special holiday, so theygo to work tomorrow .A．can’tB．needn’tC．mustn’
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• 下列微生物，属于生产者的是（）A．炭疽杆菌B．双球菌C．枯草杆菌D．硫细菌-生物
• 小医生，下列各句均有一处错误，请找出并改正。1.At the head of the queue was two old women.__________2.You don't need t
• Here_____ something else to tell you?[ ]A. areB. is C. beD. am-八年级英语
• 如图表示的是在一个草原生态系统中，狼、草、兔三种生物的数量关系，据图回答问题：（1）A、B、C三种生物中，数量最多的是______（用字母回答），它所代表的生物是______．（2）兔在-七年级生物
• 如图为生态系统关系简图，请据图回答下列问题．（1）依据生态系统的组成成分划分，图中①是______，②是______③是______；④是______．（2）图中鸟类与虫子的关系是______．若人们
• －Is that Mary?－No, it _______be her. She has gone to Tokyo. A．can’tB．mayC．needn’tD．mustn’t-九年级英语
• Wang Mei ____ her mother because she is beautiful and intelligent.[ ]A. lookB. likedC. is like D. lo
• ______ his birthday March 6th?[ ]A. WhenB. How old C. Is D. Does-七年级英语
• It’s time _____ class. You must _____ the classroom.A．to; to goB．for; go toC．to; to goD．for; to go-七
• —Must I clean my room now, Mum?—_______. You can do it tomorrow.A．No, you needn’t B．No, you mustn’tC
• Did you walk such a long way on such a hot day? You _______ be tired and thirsty. [ ]A. can B. must
• 你能用绘图的方法，说明在池塘生态系统中能量流动是怎样进行的吗？-八年级生物
• 生态系统中能量流动与物质循环的关系是[]A．虽然二者是各自独立的过程，但它们是同时进行的B．物质的合成和分解过程，伴随着能量的储存、转移和释放C．先有物质循环，然后才有能-八年级生物
• 在生态系统中，物质和能量沿着________和________流动，有毒物质也能够沿着它们进行积累。-七年级生物
• —Look! A book is on the floor. Whose is it?—It ______ be Rick’s. It has his name on it.A．mustn’tB．ca
• 绿色植物作为生命角色（），通过食物链、食物网养育了其他生物（）A．生产者B．消费者C．分解者D．非生物成分-七年级生物
• Neither he nor his parents _____ going to Beijing.[ ]A. is B. was C. are D. will-八年级英语
• Mary _____ from Cuba.[ ]A. isB. amC. are-七年级英语
• --- That T-shirt with Yao Ming’s picture on it ________ belong to David. He admires him a lot.---No,
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• — I can't stop smoking, doctor. — For your health, I'm afraid you _____. [ ]A. must B. hav
• We ______ careful when we are walking across the road. There are too many vehicles now. [ ]A. can be
• --- Can you make a kite for me?--- Sorry, I _____.A．needn’tB．can’tC．mustn’tD．shouldn’t-九年级英语
• Food safety is important. Rulesto stop people from food pollution.A、must makeB、must be madeC、can’t b
• 一群有乌鸦、麻雀等鸟类组成的群体是一个生态系统______．（判断对错）-七年级生物
• 在生态系统中，能量最终来源于（）A．植物B．有机物C．光能D．分解者-七年级生物
• —Where ______ they from?—They're from China.[ ]A. isB. amC. are-七年级英语
• --Must we move to the next room?--No, you____________ . You may still live here if you like.A．mustn&
• 如图是某生态系统中的食物网简图．请据图回答有关问题：（1）该生态系统中的生产者是______，鹰属于______，此食物网由______条食物链组成．（2）写出其中最长的一条食物链______．（-七
• 下列各句均有一处错误, 请找出并改正。1. My family is all at home. ________ _2. What do your father do?________ _3. The
• — Must I finish my homework now? — No, you _____. [ ]A. must not B. don't C. needn't D. ca
• —Must I buy lunch at school?—No, you needn’t. You __________ bring your own lunch if you want to.A．s
• 下列动物中直接以植物为食物的是（）A．蛙B．猫头鹰C．狼D．羊-七年级生物
• There's enough time for you to go to the airport.You hurry now.A．shouldB．needn'tC．mustD．ca
• A: Where ________ their books ? B: Sorry , I don't know . [ ]A. isB. am C. are-七年级英语
• — _________ I use your telephone?— Yes, of course.A．WouldB．MayC．ShouldD．Must-九年级英语
• – Must I stay here with you?-- No, you ______. You may go home, but you _____ go to the net bar(网吧).
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• There's something wrong with my radio. Can it _____? [ ]A. be mended B. is mendedC. was mended
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• 下列属于生态系统的是（）A．漳河水库中所有的鱼B．仙居乡全部的仙居红萝卜C．文明湖中所有的生物D．东宝山林区-七年级生物
• The jeans_____ fit for me, maybe, the pair of jeans _____fitter for me.[ ]A.are; are B.is; is C.is ;