It's necessary _____ speaking English every day.[ ]A. practice B. practices C. practicing D. to

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• 选词填空 care about have on become interested in show off for example 1. It's important to eat plen
• 如果实验结果与假设出现矛盾，下列做法错误的是（）A．修改假设B．修改实验数据C．重新进行实验D．进一步查找相关资料-八年级生物
• 在调查校园生物时，以下同学的做法正确的是A．小明发现好几株他不认识的植物，于是把它们拔出来，带回家研究B．小浩发现一只老鼠，觉得太恶心就不记录了。C．小美拔开草丛，一只-七年级生物
• Do you want _____ to a movie?[ ]A. goB. goesC. to goD. going-七年级英语
• Students are often told _____ at people who are in trouble.[ ]A. not to smile B. to smile C. not to
• 在实际工作中，通常使用的方法是（）。A．观察法B．实验法C．调查法D．多种方法并用-七年级生物
• 为及时掌握干旱对我区农业生产造成的损失情况，采用下列（）方法较为适当A．模拟实验B．实验法C．调查法D．观察法-七年级生物
• 有关实验技能的说法中，正确的观点是：A．在科学探究中，提出的假设总是与实验结果相一致B．科学探究通常包括提出问题、作出假设、实验、得出结论和表达交流等方面C．在探究光对-七年级生物
• 在科学研究和社会调查中（空气污染尘埃粒子），常采用五点取样法，正确的五点取样法是-七年级生物
• We need __________a Chinese History Club.[ ]A. startingB. to startC. to be startedD. starts-九年级英语
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• —Jim decided ___________ us in the game.—Oh, very good![ ]A. joining B. to join C. joined D. join -八
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• 在测量空气的相对湿度时，如何减小误差，提高测量数据的可靠性？A．测量一次B．测量多次取最大值C．测量多次取最小值D．测量多次取平均值-七年级生物
• We sang for the old woman __________.[ ]A. cheer up herB. cheer her upC. to cheer up herD. to cheer
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• 观察法是进行科学研究的一种方法，下列说法错误的是()A．要全面、客观、细致地观察B．科学观察要有明确的目的C．观察必须借助显微镜才能进行D．观察时要认真思考，并如实做好记录-七年级生物
• 五点取样法是抽样计数的方法之一，五点的位置应该是（）A．一块地方内随机五点B．一块地方内等距离五点C．面积大小相同的五点D．对角线中心和对角线上与中心等距离的四点-七年级生物
• The government plans ___________ a square here.[ ]A. to build B. buildingC. buildD. built-八年级英语
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• 设计对照实验时，应遵循的原则是（）A．除实验变量外，其他变量都不同B．除实验变量外，其他变量都相同C．所有变量都不同D．所有变量都相同-八年级生物
• The famous singer has agreed _____ the prizes at the prize giving ceremony.[ ]A. to presentB. presen
• 在科学探究过程中，提出问题后可以应用已有的知识对问题的答案提出可能的设想，即A．作出假设B．制定计划C．实施计划D．得出结论-七年级生物
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• Mrs. Green likes _______. She hates _______[ ]A. to going shopping, do choresB.go shopping, to do ch
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• 下列关于“校园生物调查”的叙述中，不正确的是A．调查生物侧重点是注意较大的生物B．调查时，全组的同学要集体行动，不要攀爬高处C．调查到的生物可以按照某种共同的特征进行简单-七年级生物
• Ask him_______come to our party next Sunday.[ ]A. notB.not toC.doesn'tD.isn't-九年级英语
• He has a lot of homework______.[ ]A. doB.doingC.to doD. does-九年级英语
• —Why are they so noisy? —They are arguing about which TV programmes ______. A. they watchB. to watch
• His brother wants him ___________ at home today.[ ]A. staysB. stayingC. to stay D. stay-八年级英语
• She read the instructions to find out how ____ the computer.[ ]A. useB. to useC. using D. uses-九年级英语
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• He is learning ________ a car though it is not easy for me.[ ]A. drive B. drivingC. to drive D. driv
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• I started _______ with the other students and made friends.[ ]A. to talkB. talking C. talked D. talk
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• — Why does your brother want _____ lions? — Because they are very interesting. [ ]A. see B. sees C.