V. Read the following passage and choose the best answer to fill in each blank.

My uncle is working at a car company. His company is now developing ___(1)___ new flying car. The car will have solar panels on its roof and wings, and it will charge ___(2)___ battery as it moves. During light traffic, you can use roads. ___(3)___ in heavy traffic, you can use the flight mode to avoid traffic. It will be able to carry eight passengers. The car will have an autopilot function, so a driver is not ___(4)___. All passengers can relax, read books or play games while travelling.

I was worried ___(5)___ the safety because it is driverless, but my uncle said it will be much safer than a traditional car. It will also be more comfortable and greener because it is solar-powered.