sắp xếp ko thêm từ 1 fast/but/think/transport/will/safe/be/I/future 2 reduce/will/our/total/It/time/travelling/for 3 means/of/will/be/transport/in/the/used/future/What/? 4 by/flying/sure/travelling/come/cars/will/I'm/true 5train/She/thinks/a/sounds/great/space 6 will/very/environmentally/engines/friendly/Future/be 7 a /jet/pack/prefer/to/I'd/have 8 There/many/have/been/transport/interesting/inventions 9 I/is/a/convenient/gues/to /travel/mono-wheel/bike/way 10 people/travel /in/the/year/How/will/2100?