Choose the words and complete the passage （选择最恰当的单词完成短文）：
If you look around the streets of London, you'll see the many methods people use to move around. Whether ifs a way to work, a trip to the shops, or a sightseeing trip, there are people on buses, the underground, cars, motorbikes, bicycles and even roller skates. The roads are already1: and now there's a new addition: electric, or "e--scooters".
This traditional children's vehicle has become more welcomed over the years. And now, with a small electric motor, it's become a cheap and easy way of2. Scooting around town can be fun and doesn't need much effort, so they're becoming increasingly welcomed in cities around the world. But following some serious accidents caused by an electric scooter in the UK, questions are being asked about their safety and 3 traffic laws should be changed.
Some scooter riders have been seen on pavements; others on the road jumping red traffic lights, adding to traffic jams on the road. In the UK, the law says that riding one on the public highway or pavement is not4. Riders now face a £300 punishment and six points on their driving license for doing so. But, still e-scooters can be seen5. And now users are calling on rules to be changed.
The UK government is looking at how safely they can be used on the road and is examining the law again. But the official said, "It is an6 product. We know there is need among people. However, safety must always be the first to consider when talking about their use on public highways in this country."
There are dangers in riding a two-wheeled scooter. Some of them can drive at high speed, over 30mph. They sometimes only have one brake (刹车)and no lights. It seems more work needs to be done to give e-scooters a safe and right space to travel in.