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Nowadays in United States, more and more people are beginning to build underground houses where save open land. When houses are underground, there are more land for parks, playgrounds and gardens. Underground house also save energy. They use only a few energy to stay warm or cool. As we know, the idea underground houses is very old. People in the past live in underground houses and underground cities in China. And today you can"t find large underground shopping centers in China, Japan, South Korea and Canada as well as. Some countries also build underground factories and shop-houses to held things. | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |
She was educated at Beijing University, _____ she went on to have her advanced study abroad. | |
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A. after which B. from which C. from that D. after that | |
Women ______ drink more than two cups of coffee a day have a greater chance of having heart disease than those ______ don"t. | |
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A. who; 不填 B. 不填; who C. who; who D. 不填; 不填 |