1.The vehicle could be more wanted in mega cities with heavy traffic pressure. _______ 2. The EHang company needs to make efforts to assure both government regulators and consumers of the safety of its personal flying vehicles. _______ 3. The service fee is indispensable in addition to the commodity price. _______ 4. It seems like a mistake that the 184 doesn’t employ sense-and-avoid technology. _______ 5. The 184 helps medical staff shorten the time to reach the ones who need first-aid. _______ 6. The company hasn’t applied for permission from American Federal Aviation Administration. _______ 7. The control center will supervise every 184 in service all day long. _______ 8. The EHang company was established three years ago. _______ 9. The passenger of the personal flying vehicles doesn’t need to acquire a pilot’s license. _______ 10. The company always plans to manufacture personalized flying vehicles. _______