______ his birthday March 6th?[ ]A. WhenB. How old C. Is D. Does-七年级英语

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• 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,
• 在农田生态系统中，生产者是（）A．农民B．农作物C．耕地D．耕牛-七年级生物
• 我们人体所需能量的最终来源是（）A．植物中的化学能B．太阳的光能C．食物中的化学能D．摄取食物的热能-七年级生物
• — 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).
• 生态系统的生物成分包括______、______和______等在内的所有生物，并根据它们在生态系统中的作用，将它们划分为______、______和______．-七年级生物
• 在一个完整的生态系统中，扮演生产者和消费者角色的依次是（）A．太阳、动物B．细菌、动物C．植物、动物D．太阳、真菌-七年级生物
• There's something wrong with my radio. Can it _____? [ ]A. be mended B. is mendedC. was mended
• —I borrow your camera? I want to take some photos. —Sure, here you are.A．MustB．NeedC．MayD．Should-八年级
• ______ there water in the cup?[ ]A．Is B．Are C．Has D．Have-七年级英语
• 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 ;
• 改正下列各句中用错的 am, is, are。1. How are your father?____________2. I with Tom are in Class 3.___________3.
• 消费者能将无机物制造有机物，组建自己的身体．______．（判断对错）-七年级生物
• 细菌、真菌是自然界中的分解者，关于分解者的作用，下列叙述错误的是（）A．分解动植物的尸体、粪便等B．把动植物尸体中的无机物变成有机物，供绿色植物利用C．推动自然界中二氧化-八年级生物
• — Mum, must I wash the dishes right now?— No, you ______.A．shouldn’tB．wouldn’tC．mustn’tD．needn’t-九年
• —Must I return the book this week?— No, you ____. You can ____ it for 20 days.A．mustn't: keep B
• — Mary, whose photo is it?—It ______ be Lu’s. Those are her parents.A．canB．shouldC．mustD．need-九年级英语
• He _____ be at home, because the light is on.A．mustB．can’t C．can D．might-八年级英语
• 山东济宁地区爆发梨小食心虫疫情，梨小食心虫的幼虫最早于4月上中旬化蛹．成虫一般出现在4月中旬～6月中旬．梨小食心虫一年繁殖2～3代，第一代幼虫主要危害梨芽、新梢、嫩叶、叶-九年级生物
• Her watch _____ in her backpack. [ ]A. am B. is C. are D. be-七年级英语
• ---There is somebody knocking at the door. Who________ it be?---I’m not sure. It ________ be a post
• My grandmother doesn't _____. She is weak.[ ]A. feel well B. feeling good C. feeling well D. fe
• 在生态系统中，生产者和消费者的关系，主要是食物关系．______．（判断对错）-七年级生物
• 如图描述了部分微生物在自然界中的作用，请认真分析并回答．（1）从图中可以看出，营______生活的细菌、真菌能使动、植物遗体不断地______、______，最终使它们消失掉．（2）动、植-七年级生物
• You ______ be hungry already—you had lunch only two hours ago!A．wouldn’tB．can’tC．mustn’tD．needn’t-九年