What will our future ______? No one knows _______. [ ]A. be like; for certain B. is like; for certai

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• —Must I go through the radiation (辐射) check when I come back from Japan at the airport these days?—Y
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• 大多数动物在生态系统中充当（）A．生产者B．消费者C．分解者D．统治者-生物
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• 一个完整的生态系统的组成应包括（）A．全部的食物链和食物网B．生产者、消费者、分解者和食物网C．非生物部分、生产者、消费者D．非生物部分和生物部分-生物
• 利用所学的知识回答下列问题：（1）大雨过后，蚯蚓纷纷爬出地面的原因是______．（2）人的头癣、灰指甲、脚癣等都是由______真菌引起的．（3）为了保护南极的生态环境，科学工作者不仅-生物
• —Do you know the song Come on, Haixi!—Yes, and I _________sing it well.A. must B. can C. need-九年级英语
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• —Two months ______ quite a long time.—Yes, I'm afraid that he will miss a lot of his lessons. [
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• —Let’s go dancing tonight.!—Sorry, I ________.I have to go to my guitar lesson. A. mustn’t B. needn’
• — Susan, would you like to go hiking with us this afternoon?— I'd love to, but Istudy for a tes
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• They _____ here for more than a month. [ ]A. have arrived B. have reached C. have come D. have been
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• We can make a fire ______ the room warm so that we can chat for a while.A．to keepB．keepingC．keepD．ke
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• —______ did you sleep last night?—Only five hours. I stayed up late to do my homework.A．How soonB．Ho
• —I am happy that Ito be the host. —Congratulations! [ ]A. choose B. are chosen C. was chosen D. have
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• 如图所示是某生态系统的食物网，请根据图和所学知识回答下列问题．（1）图中的绿色植物利用太阳能，制造有机物，不仅养活了自己，还养活了图中的其它生物，所以它是生态系统中的-生物
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• Almost all the water ____ gone. Please save water! [ ]A. areB. is C. have D. were -九年级英语
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