—____I come in?—Comein ,please.[ ]A. MayB. MustC. NeedD. Have to-八年级英语

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• 生态系统中的能量流动伴随着__________。-八年级生物
• Youkeep the book for a week.[ ] A. can B. have to C. must D. should-八年级英语
• Cathy said shespeak four languages.[ ]A. mayB. couldC. wouldD. can-八年级英语
• You________ be careful when you are driving atnight.[ ]A. can B.should C.wouldD. could-八年级英语
• Taking a boat to school _____ a lot more fun than taking a bus.[ ]A. must haveB. must be haveC. must
• Jim ________ back in ten minutes._______ he won't come back.[ ]A. maybe; May beB. may be; May b
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• 单句改错。1. She should goes to bed early.2.—When did it start? —About two weeks before.3. She can sing g
• 流入植物体内的能量，一部分以______的形式散失，一部分则用于植物体的______、______和繁殖。-八年级生物
• I don't have enough money. Maybe Iget a part-time job.[ ]A. shouldB. shouldn'tC. shallD. h
• 按要求改写下列句子，每空一词。l. It seems that Kate has supper at home.（改为同义句） Kate________________have supper at h
• I'm sure he will ________ pass the exam.[ ]A. canB. couldC. is able toD. be able to-八年级英语
• -She looks tired. -Yes, she___________go to see a doctor.[ ]A. will B. maybeC. shouldD. must-八年级英语
• —Is the man in blue our headmaster? —It _____ be him. He has just left for Beijing.[ ]A. mustB. mayC
• 在生态系统中，能量是从固定_______开始的。-八年级生物
• —Hi, Jim,_ you come to my party?—Sorry, I can't. I have to do my homework.[ ]A. can B. may C. n
• —Who's that woman with Ann?—I'm not sure. It _____ be her mother.[ ]A. mayB. can C. must-九
• —John, you_____ go out to play until your homework _____. —OK, Mum.[ ] A. must; finishes B. can'
• —Must I clean the room now?—No, you________ You can do it tomorrow[ ]A. mustn't B. mustC. needn
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• Maybe you could __________[ ]A. call up him B. call him upC. called him upD. calling up him-八年级英语
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• —Shall we take a taxi?—No, we . It’s not far from here.[ ]A. can’t B. mustn’tC. shouldn’t D. needn’t
• 句型转换。1. There will be more rain in 100 years.(改为否定句) There _______ _______ more rain in 100 years.2.
• I________rideabikewhenIwassevenyearsold.[ ]A.mayB.mightC.canD.could -七年级英语
• We'll _________ learn English well soon.[ ]A. canB. couldC. be ableD. be able to-八年级英语
• Marcia called me yesterday to tell me that she______ some Japanese. [ ]A. could speak B. speaks C. w
• The last train is left, soI _____stay here until tomorrow.[ ]A. mustB. have toC. stopD. live-八年级英语
• School students _______ smoke because it is against the school rules.[ ]A. needn'tB. couldn
• —You ______ turn on the light. It's bright enough here.—OK. I will turn it off right now.[ ]A.
• —Is that girl under the tree Mary?—No, that ______be Mary. She is in New York.[ ]A. canB. mustn’tC.
• 关于生态系统的能量流动，下列叙述中正确的是[]A．稳定的生态系统必须不断地从外界获取能量B．生态系统中的能量最终来自于太阳能C．生态系统的能量流动可以循环进行，提高能量的-八年级生物
• 下图是生物圈中碳循环的示意图，下列分析不符合图中表示的信息的是[]A．图中③表示的生理过程是呼吸作用B．能量沿着食物链流动，在丁这一级生物体内积累得最多C．图中甲代表的生-八年级生物
• The desk is not dirty. You _____clean it.[ ]A. mustn'tB. shouldn't C. needn't D. can&
• You _ be tired after playing sports for a long time without a rest.[ ]A. mustB. need C. can't-八
• You _____be tired after working for eight hours without a rest.[ ]A. canB. mayC. must D. need-八年级英语
• Schools allow students to do at least one hour's sports every day after school. [ ]A. wouldB. m
• You _____be careful next time. It is very dangerous to stay alone in the forest.[ ]A. mustB. canC. w
• —Can I go to the park, Mum?—Certainly. But you ______ be back by six o'clock. [ ]A. can B. may
• We ________fight against pollution.[ ]A. may B. shouldC.mustn't D. needn't-八年级英语
• 在生态系统的能量流动中，能量形式的转变顺序是[]A．光能→化学能→热能B．热能→光能→化学能C．化学能→光能→热能D．光能→热能→化学能-八年级生物
• — Have you heard that some bad thing would happen in 2012?— Don't worry! The news_____ be true.