31. In the future most people will travel  __________ flying train. A. in                                                     B. at                             C. on                           D. to 32. Do you think we __________ driverless car in the future? A. use                                                  B. will use                    C. to use                      D. have used 33. At this time tomorrow, I ______________an interview. A. will have                              B. will having   C. will had                   D. will be having 34.The ___________ is a single-wheel bike. A. monowheel B.  hover scooter        C. Segway                              D. teleporter    35. Nuclear energy can provide electricity for the world needs, but it is __________ A. cheap                                  B. unlimited                 C. dangerous              D. safe 36. You can  ___________easily on the Dead Sea. Why? – Because it’s so salty A. fly                                                    B. walk            C. drive                       D. float 37. __________ books are here. ______________are over there. A.Theirs / Ours                       B. Their / Our  C. Theirs / Our            D. Their / Ours 38. It’s really difficult to_____________ a bicycle up the hill A. fly                                        B. drive                        C. pedal                       D. sail 39. The cars which are generated by solar energy are called ____________ cars. A. solar-wasted                       B. solar-powered         C. solar-friendly          D.solar-daily 40. I’m sure you’ll find the book ___________. A. amuse                                 B. amusing                  C. amused                  D. amusement 41. Remember not to park in front of a zebra _____________. A. crossing                              B. cross                       C. across                     D. crossed 42. The end of the film was so _____________ that many people cried. A. boring                                 B. shocking                 C. exciting                   D. moving 43 ____________ is it from your house to the shopping mall? – About 3 kilometers. A. How                        B. How long                 C. How far                   D. How high 44. Traffic accidents can be prevented if people ___________ the rules. A. remember                           B. obey                        C. go after                   D. take care of 45. When there is a traffic jam, it        me a very long time to go home. A. costs                                   B. takes                       C. lasts                        D. spends