All we are required to do ______ record a "weike" where we explain what we think students are puzzled about．
| A．are | B．is | C．was | D．were |
His happy life came to _____ end because he was put into _____ prison for stealing money.
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— Would you please give an example to show how useful a computer is?
— Sure. __________ people get __________ information from it every day.
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Don’t ___that all these who get good grades at school will be surely successful in the future.
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Mary, you can’t imagine what great difficulty I’ve had _____ him with the project.
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The teacher demanded that he __________ his homework at once.
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