1. By the middle of the 21st century, people in …………… countries will be using more renewable energy. A. developing B. develop C. to develop D. development 2. Alternative sources of energy___ developed in the near future. A. is B. was C. has been D. will be 3. “Why is it called a ____________ source?” – “Because it can be replaced easily and quickly.” A. effective B. specific C. renewable D. non-renewable 4. Hydro power is _____________ because dams cannot be built in certain areas. A. limited B. unlimited C. abundant D. enough 5. At this time next week, we ______________ a wind turbine in our garden. A. install B. installed C. will installed D. will be installing 6. Biogas is _____ and cheap for cooking and heating. A. plenty B. abundant C. serious D. expensive 7. A hydropower station ______________ in the North of the country next year. A. will be built B. were built C. was built D. has been built 8. I would like ___________ some fruit and vegetables. A. to buy B. buying C. buy D. to buying 9. I hate carrots and I don’t like peas, ___________. A. neither B. so C. too D. either 10. She ___________ the beef into thin strips. A. heated B. sliced C. marinated D. chopped