请认真阅读下面的短文，按要求回答问题。
ㅤToday，around half of the world's population lives in cities.But when you grow up，cities may become more crowded（拥挤的）．By 2050，68 percent of the world's population may live there．What might your life look like in the future？
ㅤSupersonic airplanes（超音速飞机）
ㅤSupersonic airplanes came out in the 1960s.But they were too noisy to use.Now，US company Boom will make better airplanes of this kind.They fly higher than usual airplanes.This makes the flight more stable.Also，supersonic airplanes are quieter and faster.Now it takes you more than 11 hours to fly from Beijing to Seattle.With a supersonic airplane，it will be just 5 hours!
ㅤFlying taxis and buses
ㅤMany companies are working on flying cars.Japan's Sky Drive is one of them.Its car has only two seats for a pilot and a passenger.It runs on electricity and flies about 10 kilometers per charge.It helps to cut traffic jam（交通堵塞）.
ㅤUnderwater highways
ㅤBesides"flying" in the air，we might also move around underwater.These highways are under water tubes.People sit in pods（舱）.They can travel between the UK and countries in Northern Europe in less than an hour.Usually，it takes around two hours.
i.判断下列句子与短文内容是否相符，相符的写"A"，不相符的写"B"。
（1）Now sixty-eight percent of the world's population may live in cities.

B

B

（2）With a supersonic airplane，it will just take you 5 hours to fly from Beijing to Seattle.

A

A

（3）Japan's Sky Drive has two seats for passengers.

B

B

（4）In the future，people might save a lot of time in travelling.

A

A

ii.请根据提示，用完整的句子回答问题。
（5）How long will we travel between the UK and countries in Northern Europe by highways under water tubes？（根据短文内容回答。）

In less than an hour.

In less than an hour.

（6）What might you think your life look like in the future？（根据自己实际的情况回答。）

It will be more convenient.

It will be more convenient.