Choose the correct options. Orville and Wilbur Wright (knew was known know are know) as the inventors of the first airplane. On December 17, 1903, the Wright brothers launched the era of human flight when they successfully tested a flying vehicle that (must,could, can, had to) take off by its own power, fly naturally and land without damage. Nowadays a plane (must consider, mustn’t be consider, can be consider, can be consider) the most common means of transport but passengers (has to follow, have to follow, may follow, can follow) the rules on board the aircraft. Passengers (Can, must, mustn’t, should)switch off all electronic devices. Passengers Blank(Can, must, mustn’t, should) smoke during take-off and landing. Passengers Blank (Can, must, mustn’t, should) take a short walk around the cabin on a long-haul flight. Passengers (Can, must, mustn’t, should) wear loose, comfortable clothes and shoes for your flight. Passengers (Can, must, mustn’t, should) fasten their seatbelt.