1. If I have a jet pack, I will use to fly anywhere easily. A. my B. mine C. his D. their 2. We are looking for cheap, clean, sources of energy. A. polluting B. harmful C. expensive D. effective 3. Don’t forget to the lights when leaving a room or going to bed. A. turn B. turn on C. turn off D. turn out 4. The use of biogas for cooking in the countryside. A. will increase B. will be increasing C. will be increased D. will have increaded 5. Is this schoolbag ? A. you B. your C. yours D. them 6. Which is the best of transport for the future? A. mean B. means C. traffic D. ways 7. Wear a hat you’ll get sunburnt. A. and B. or C. but D. so 8. Stay outdoor and do physical exercises. A. more – less B. less – less C. more – more D. less – more