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If I ______you , I would not promise him anything he wants this time.
A. beB. wereC. wasD. being
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I just wonder if ( )ever( )that you could have your own enterprise and run it yourself when you were still a student.A、it.occurredB、you.occurred to itC、it.occurred to youD、you.occurred
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( ) fly.
A、The birdsB、The birdC、BirdsD、Bird
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Such suffixes as " － able" and " － ment" in Modern English originally came from_______
A FrenchB Old EnglishC LatinD Greek
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Have you ___been to our town before? No. it’s my first time I _____here.
A.ever, comeB. even, have comeC.ever, comeD. ever, have come
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下列字符型常量Hello,world!表示方法中，错误的是______。A．[Hello,world!]B．'Hello，wOrld!'C．Hello,world!，D．{Hello,world!}
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13．A．bringB．carryC．rideD．fly
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The girls are afraid that being friendly to strangers could be misinterpreted by their＿＿neighbours.
A. ever-present
B. ever-presented
C. ever-presenting
D. ever-presently
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共用题干
第三篇Judging from recent surveys,most experts in sleep behavior agree that it is virtually an epidemic of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr. David.Even people who think they are sleeping enough would probably be better off with more rest.The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was dark." By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had to wake to an alarm clock."People cheat on their sleep,and they don't even realize they're doing it,"says Dr. David."They think they're okay because they can get by on 6.5 hours,when they really need 7.5,8 or even more to feel ideally vigorous.""Perhaps the most merciless robber of sleep,"researchers say,"is the complexity of the day." Whenever pressures from work,family,friends and community mount,many people consider sleep the least expensive item on his program."In our society,you're considered dynamic if you say you only need 5.5 hours' sleep.If you've got to get 8.5 hours,people think you lack drive and ambition."To determine the consequences of sleep deficit,researchers have put subjects through a set of psychological and performance tests requiring them,for instance,to add columns of numbers or recall a page read to them only minutes earlier."We've found that if you're in sleep deficit,performance suffers,"says Dr. David."Short-term memory is weakened,as are abilities to make decision and to concentrate."Many Americans believe that__________.A:sleep is the first thing that can be sacrificed when one is busyB:they need more sleep to cope with the complexities of everyday lifeC:to sleep is something one can do at any time of the dayD:enough sleep promotes people's drive and ambition
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Few （） his intention of moving to the South.AknowsBare knowingCknowDis knowing