Life is like riding a bicycle. ________ your balance, you must keep moving.A．Ke
题型：不详难度：来源：
Life is like riding a bicycle. ________ your balance, you must keep moving.| A．Keeping | B．To keep | | C．Keep | D．Being kept |
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答案
| B |
解析
| B 句意：生活就像在骑自行车。为了保持平衡，你必须不断前进。根据句意可知此处需用不定式作目的状语，故选B项。 |
举一反三
—I regret ________ you that your application has not been successful.
—Not successful? I performed pretty well in my interview!| A．informing | B．to inform | | C．having informed | D．to have informed |
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It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.| A．produced | B．producing | | C．to produce | D．having produced |
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The text is too difficult. The explanation of our teacher will help make it easy ________.| A．to understand | B．to be understood | | C．understood | D．understanding |
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China is expected to export 1 billion mobile phones this year, ________ by a surge in demand for smartphones worldwide.| A．drive | B．driving | C．to drive | D．driven |
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My mother went to the private school in person ________ that I would be safe there.| A．confirming | B．having confirmed | | C．to confirm | D．confirmed |
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