“Darwin teaches us that life _________ continually ________ to keeping up with a changing Earth.” Th

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• ---How can we reduce CO2 in our home? ---It’s easy．______off your TV or computers when you’re not us
• We Chinese ______ the Olympic Games in 2008.A．heldB．shall holdingC．are holdingD．are going to hold-英语
• What__________ to you this morning?A．happensB．is happenedC．happenedD．was happened-英语
• –What did Mr Jones do before he moved here? -He_______ a city bus for over twenty-five years.A．has d
• The living standard of the people in Shanghai_______ in the last ten years.A．has raisedB．has risenC．
• Tom，together with Mary and Alice，______swim this afternoon．A．is going toB．are going toC．was going to
• Father______for London on business upon my arrival，so I didn't see him．A．has leftB．leftC．was le
• This new method of teaching for the time being in our school. It will be carried out all________over
• -I give up．It’s too hard． -Really? I______you could make it through．A．thinkB．thoughtC．have thoughtD．
• ---Why is the librarian looking so hard at me?---You _______ to read aloud in the reading room. A．do
• I ________ up early this morning, so I stayed in bed until 8 o’clock a．m．A．needn’t have gotB．didn’t
• I______ to see grandma and help her with some housework every week.A．cameB．am going comeC．comeD．will
• The girl________ to milk since last winter.A．learnsB．learnedC．has learnedD．would learn-英语
• The door．Better have it repaired．A．won’t shutB．hasn’t been shutC．won’t be shutD．isn’t shut-英语
• _____the bus until it _______.A．Get off, stopsB．get off, will stopC．Don’t get off, stopsD．Don’t get
• — I hope you enjoyed the film last night. — How on earth do you know I went to a film? I _____ you.A
• They ____ in Holland for ten years．Now they have settled down in Paris．A．livedB．have livedC．had live
• After the party, the boy apologized to the girl for the trick he had_______on her.A．takenB．playedC．u
• As we stood on the top of the hill，we could see the beautiful scene that__________before us.A．had sp
• We ____ to the park if it is fine tomorrow.A．will goB．have goneC．go D．went-英语
• After graduation, he was employed by a famous company and ____ there ever since.A．workedB．has worked
• —I don’t know why Tom was absent from yesterday’s meeting.—He must have been sick, _______？A．isn’t h
• ----Where is Mr Brown? I have some questions to ask him. ----He ______the office.A．has been to B．has
• The Anti- Japanese War ________ in 1937 and it ________ eight years.A．broke out; lastedB．broke out;
• 25. ---You ought to have educated your son not to have eaten so much junk food, such as fried chicke
• If we________develop the world successfully, we must make sure that everyone is able to take part in
• Dr. Smith, as well as his wife and daughters , ______ visit Beijing this summer.A is going to B are
• ---Do you know when the World Cup ________ next week?--- Next Friday. When it ________, I will ring
• The funny story _______ me laugh.A．make B．makingC．to makeD．made-英语
• — What’s the matter? — The shoes don’t fit properly. They _____ my feet.A．are hurtingB．will hurtC．h
• His father told me that he __________ for the United States three days __________.A．has left; agoB．h
• We desire that immediate help _____ to the local villagers who have been trapped by the flood.A．be g
• I’m not sure whether be has finished writing the book, but he________ it last month.A．worked at B．wa
• —Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon.—Sorry, but he ________ a patie
• —I wonder how long you _____ in Hawaii.—Just for the weekend, then I had to attend a conference in L
• Being afraid of making mistakes, the little boy __________ answer his teacher’s question.A．does dare
• —I’m sure Andrew will come out first in this gymnastic competition.—I think so. He ______ for it for
• –Could you meet me at the airport?--I’d like to, but I’m afraid I_________ a very important meeting
• Tens of thousands of trees _____ in the area in the past few years.A．have been plantedB．were planted
• Had it not been for the fact that she was_________ with her work, she would have attended the concer
• —Miss wang once art at Bardon School for ten years and now is a singer. —No wonder I often hear her
• .This is the first time that I _________ such an interesting film.A．sawB．seeC．have seenD．had seen-英语
• It is said that the meeting ______ for three hours. Why should I regret missing it?!A．has lastedB．ha
• Some of the heat near the surface of the earth _____ electricity.A．is used to makingB．are used for m
• I must return the camera to Cindy. I ______it for two weeks.A．keep B．borrowed C．have kept D．have len
• A new dining room ________ in our school. It will take one and a half years to finish it.A．has been
• If Newton lived today,he would be surprised by what_____in science and technology.A．had discoveredB．
• The children planted more trees and flowers after they______Greener China.A．joined B．took part inC．b
• Look! One of the girls ______the door.A．cleans B．is cleaningC．clean D．are cleaning-英语
• When he was alive, the old scientist used to say that knowledge ____ from practice and he gained his