牛津上海版(深圳用)英语六年级上册Unit 12基础练(选词填空)
试卷更新日期:2023-09-27 类型:同步测试
一、选词填空
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1. Smoke(from/of)cars and factories makes the air dirty.2. The Earth(was/is)very clean in the past.3. We(should/could)stop(cutting/cut)down so many trees.