sentence: All in all , public transport should be an indispensable part of our future plan , because we have to protect our beautiful environment . Travelling by car , although much more convenient , is never a clever choice for the betterment of our future society because of serious environmental issues .
modified: All in all , public transport should be an indispensable part of our future plan because we have to protect our beautiful environment . Travelling by cars , although much more convenient , is never a clever choice for the betterment of our future society with the severe environmental issues .
transformation: PUNCT, NOUN:NUM, PREP, DET, ADJ