1. There/been/have/transport/interesting/many/inventions/nowadays/./

=> Nowadays , there have been many interesting transport inventions.

2. The/a/is/single-wheel/bike/mono-wheel/./

=> The Mono-wheel is a single-wheel bike .

3. The/sits/driver/the/to/wheel/inside/and/pedals/go/forward/./

=> The drivers sit inside the wheel and pedals to go forward .

4. The/pulls/handle/to/driver/to/go/forward/back/or/pushes/the/it/go/./

=> The driver pulls the handle to go back or pushes it to go forward .

5. I/it/way/convenient/is/guess/,/green/to/travel/a/.

=> I guess it is a convenient , green way to travel .