Answer Key:
Step 1: 1-e, 2-a, 3-d, 4-c, 5-bStep 2: 1-b, 2-a, 3-b
Step 3: 1. Conservation, 2. Pollution, 3. Ecosystem, 4. Sustain, 5. Preserve
Step 1: Pre-Reading Vocabulary Practice Match the English words with their Vietnamese meanings: Engagement Completion rate Self-discipline...
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