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A. Using hammer is harmful here. B. Cutting down a tree is allowed. C. Cutting down the woods is prohibited. D. Having trees here is luxurious. |
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A. If there is an earthquake, you must not stay inside. B. If you live in an earthquake zone, you can put flower vase on the table. C. If there is an earthquake, you should sit under a strong table. D. If you live in an earthquake zone, you should check the furniture. |