Unit 2 Healthy eating Learning about Language课件 人教版必修3
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3. We have to put on warm clothing in winter. 冬天的时候,我们不得不穿上保暖衣。 4. You needn’t talk so loud. 你说话的声音用不着那么大。 5. You needn’t have talked so loud. 你说话的声音本来没有必要那么大。