1. If we water carefully, more people will have fresh water. A. will use B. would use C. using D. use 2. If I were you , I that car . A. would buy B. buy C. bought D. buying 3. Extensive was caused to property, including homes and businesses. A. damage B. destruction C. construction D. injury 4. Tom wondered how we without tenchnology. A. will live B. live C. can live D. could live 5. Harry wanted the lasted technology, so he decided the first iphone A. to use/ to buy B. using/buying C. to use/buying D. using/ to buy 6. My mother said by 2050, we in flying cars. A. would travel B. will be travellinc. C. would have travelled D. will have travelled 7. Peter has always dreamt of becoming a because he loves A. chemist/chemistry B. chemist/chemist C. chemistry/chemist D. chemistry/chemistry 8. The teacher siad a/an breakdown might happen due to cultural A. chat/similarities B. mission/differently C. invention/similarly D. communication/differences 9. She was the only to the UFO, so she was interviewed a lot. A. messenger B. terrorist C. alien D. witness 10. We need to encourage students to feels free to) ideas and information. A. trace B. transform C.change D. exchange