1. For Vietnamese people, Tet or Lunar New Year holiday is the most important _______. A. celebrating B. celebration C. celebrate D. celebrity 2. The children laughed ________ while they were watching “Tom and Jerry”. A. unhappy B. happiness C. happy D. happily 3. What should we do to reduce the level of environmental__________? A. pollution B. pollute C. polluted D. polluting 4. My mother is__________in her use of gas when cooking. A. economical B. economizing C. economized D. economic 5. In the modern world, women’s__________roles have been changing. A. natured B. naturally C. nature D. natural 6. He sighed _________when he heard the news. A. sadly B. sad C. sadden D. sadness 7. The new appliance does not only work _________ but also saves energy. A. effect B. effective C. effectively D. effectiveness 8. Smoke, dirt and noise are all kinds of __________. A. pollute B. polluting C. pollutants D. polluter 9. Mary was really__________by the beauty of Hanoi. A. impress B. impression C. impressed D. impressively 10. The _______about travelling by train rather than by car is that you can sleep or read during the journey. A. enjoyable B. enjoyed C. enjoyment D. enjoying 11. Mai speaks English__________, so she always get the first prize in the English – speaking contest. A. fluency B. fluently C. fluence D. more fluent 12. Solar panels are installed on the roof of a house to receive the ______ from the sun. A. energize B. energetic C. energetically D. energy 13. He made a______ of Roman coins and medals. A. collect B. collective C. collection D. collector 14. The artwork was ________ done by artisan. A. carefully B. careful C. care D. careless 15. I got some _______ advice on how to make a presentation from my English teacher, so I passed my oral test A. useless B. useful C. uselessness D. usefulness 16. The ______ of the computer has revolutionized the business world. A. invent B. inventive C. inventing D. invention 17.We are ______ with the same routine day after day. A. boringly B. bore C. boring D. bored