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I will go traveling on holiday if there is time. Here are the correct answers: 1. B. instead 2. D. reduce 3. A. save 4. A. again 5. C. water pollution 6. D. throwing 7. A. will stay 8. A. would be 9. C. is-will go 10. B. greener 11. B. recycle 12. A. what 13. B. to reduce 14. B. turn off Here are the corrections: 1. If we keep on using more and more cars, we will run out of oil. (A - 'we are' -> 'we will') - The corrected sentence should use the future tense 'will run out of oil' instead of 'we are running out of oil' for a conditional sentence. 2. We should reuse and recycle bottles and cans to reduce garbage. (B - 'recycling' -> 'recycle') - 'Recycling' is a noun, whereas 'recycle' is a verb, so the verb 'recycle' should be used in this context. 3. People collect the broken glass and send it to the factories. (C - 'sending' -> 'send') - The verb 'sending' is in the present participle form, but in this context, it should be in the simple present form 'send'. 4. If there is too much exhaust fume in the air, our breathing will be badly affected. (A - 'If there will be' -> 'If there is') - In the zero conditional, we use the present tense 'If there is', not the future tense 'If there will be'. 5. Reusable bags are good because they are made of natural materials. (B - 'make' -> 'are made') - 'Make' is in the simple present form, but in this context, the passive voice 'are made' is more suitable, indicating that the bags are created from natural materials.