─ Look, Stella is there!─ That ______ be her. She doesn’t like singing.A．mustn’tB．can’tC．needn’tD．wo

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• 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,
• 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
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• — Must I finish my homework now? — No, you _____. [ ]A. must not B. don't C. needn't D. ca
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• — _________ I use your telephone?— Yes, of course.A．WouldB．MayC．ShouldD．Must-九年级英语
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