----- Nội dung ảnh ----- III. Combine each of these sentences, using IF: a) Type 1:
1. Recycle and we’ll save natural resources. 2. Be careful or you will fall over the rocks. 3. Working too much can make you feel tired. 4. Don’t be careless or you’ll break the vase. 5. He can pass the exam, she has to work hard. 6. He can do a part to save the environment by buying recycled products. 7. Putting garbage into the bins is one answer to minimize pollution.