EXERCISE 1: Circle the best answer A, B, C or D to complete each sentence. 1. Someone’s carbon ………… is a measure of the amount of carbon dioxide that their activities produce. A. effect B. amount C. footprint D. energy 2. It is going to rain any minute now. The children ………….….. in the rain. A. is being caught B. will be caught C. is caught D. are caught 3. Carbon footprint is about the …………. Effect we have on the environment. A. positive B. advantage C. harm D. negative 4. ………you ………… up this book for me, please? A. Are… going to wrap B. Will … be wrapping C. Will …wrap D. Have…wrapped 5. I usually read books about technology while I am …….. a train. A. on B. by C. in D. with 6. That’s not my hat, …………...is green. A. my B. her C. me D. mine 7. ………..driving will cause accidents on the road. A. Careful B. Care C. Careless D. Carefully 8. Some people commit …………… when they have no money and no food. A. malnutrition B. crime C. healthcare D. disease 9. The tendency to use ………. energy sources in developing countries is on the increase because non-renewable ones are running out. A. available B. non-renewable C. renewable D. plentiful 10. The countryside is ……..…. pollution than the big city. A. more B. fewer C. many D. less EXERCISE 2: Give the correct form of the verbs in the brackets. 1. ……… you (stay) ………….. at home when I arrive at 7 a.m. tomorrow? 2. Solar energy (use)……………… by many countries in the world in the future. 3. I believe that people (drive)……………….to work by flying vehicles in the future. 4. This picture is yours, (be) .............it? 5. I hope someone (invent) …………….. a machine to do homework for me.