1 . ________ your composition, read it several times and correct mistakes carefully.
| A．Polishing | B．To polish | C．Having polished | D．Polished |
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2 . People of all ages can participate in this kind of exercise ________ classify garbage, which will make their neighbourhood clean and beautiful.
| A．helping | B．to help | C．helped | D．having helped |
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3 . I asked George to go through the composition I’d just finished ______ any possible mistakes in it.
| A．correcting | B．to correct | C．correct | D．corrected |
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4 . ______ your goal in life, you should go all out and never give up even if you meet some difficulties.
| A．To reach | B．Reaching | C．Reached | D．Having reached |
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5 . 人们一直在共同努力，记录它的迁徙，并确保它有足够的植物可食用。(汉译英)
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6 . The government is setting up nature parks ________ pandas in the wild.
| A．protect | B．protecting | C．to protect | D．Protects |
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7 . _____ the project before the deadline, he had to stay up late.
| A．Completing | B．Completed | C．To complete | D．Complete |
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8 . Anxious parents do what they can _____ nervous and crying children.
| A．comforting | B．comforted | C．to comfort | D．comfort |
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9 . _______ with my fear of skating on ice, I decided _______ a skating club.
| A．To deal; joining | B．Dealing; to join |
| C．To deal; to join | D．Dealing; joining |
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10 . ________ the convenience of digital payment, many senior citizens started to use smart phones.
| A．Enjoying | B．Enjoyed | C．To enjoy | D．Having enjoyed |
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